Details for: MAP3K5 AS1

Gene ID: 101928461

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: MAP3K5 AS1

Ensembl ID: ENSG00000234263

Description: MAP3K5 antisense RNA 1

Cell Significance Landscape

Significant Cells

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

  • suprabasal keratinocyte CL4033013
    CSI 1.46
    rCSI 2.39%
    PRS 96.83

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
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    • 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 [MAP3K5 AS1](/details-gene/101928461) is a long non-coding RNA (lncRNA) gene located on human chromosome 6. Its designation as an antisense RNA suggests a primary role in regulating the expression of the protein-coding gene MAP3K5 (Mitogen-Activated Protein Kinase Kinase Kinase 5), a key component of cellular stress-response pathways. Expression data indicates that **Overall**, [MAP3K5 AS1](/details-gene/101928461) is a significant marker for [suprabasal keratinocyte](/details-cell/CL4033013), pointing towards a specialized function within the differentiating layers of the epidermis. ## Cellular Roles and Expression Landscape The expression profile of [MAP3K5 AS1](/details-gene/101928461) highlights its highly specific cellular context. **Overall**, its most significant expression is found in [suprabasal keratinocyte](/details-cell/CL4033013) (CSI: 1.46), the cells that form the intermediate layers of the epidermis and are actively involved in differentiation and barrier formation. This restricted expression pattern suggests that [MAP3K5 AS1](/details-gene/101928461) is not a broadly expressed regulatory molecule but rather plays a niche role related to keratinocyte biology. The lack of significant expression in other major cell lineages implies it serves as a specific marker for this stage of epidermal development. ## Pathways and Molecular Function While detailed functional annotations for [MAP3K5 AS1](/details-gene/101928461) are not currently available, its antisense orientation to the MAP3K5 gene provides strong clues to its molecular function. MAP3K5, also known as Apoptosis Signal-regulating Kinase 1 (ASK1), is a central kinase in pathways that respond to cellular stressors, such as oxidative stress and inflammatory cytokines, often leading to apoptosis. Antisense lncRNAs typically regulate their sense-strand counterparts through mechanisms like transcriptional interference, mRNA destabilization, or translational repression. Therefore, it is highly probable that [MAP3K5 AS1](/details-gene/101928461) functions as a negative regulator of MAP3K5 expression. In the context of [suprabasal keratinocyte](/details-cell/CL4033013), this regulatory activity may be crucial for controlling cell fate decisions, balancing survival and terminal differentiation in response to environmental cues. ## Research Directions The specific expression of [MAP3K5 AS1](/details-gene/101928461) in differentiating keratinocytes and its likely role in regulating the MAP3K5 stress-response pathway opens several avenues for investigation. **Proposed Hypotheses:** 1. [MAP3K5 AS1](/details-gene/101928461) expression in [suprabasal keratinocyte](/details-cell/CL4033013) acts as a pro-survival factor by suppressing MAP3K5-mediated apoptosis, thereby allowing cells to complete their differentiation program under conditions of mild environmental stress (e.g., UV exposure). 2. Dysregulation of [MAP3K5 AS1](/details-gene/101928461) is implicated in skin pathologies. For instance, its downregulation could contribute to inflammatory conditions like psoriasis by heightening the cellular stress response, while its overexpression might promote the survival of damaged cells, potentially contributing to the development of skin cancers like squamous cell carcinoma. **Experimental Approach:** To test the hypothesis that [MAP3K5 AS1](/details-gene/101928461) negatively regulates MAP3K5 and promotes keratinocyte survival, one could perform a loss-of-function study. A specific experimental design would involve using antisense oligonucleotides (ASOs) or a CRISPRi system to specifically knock down [MAP3K5 AS1](/details-gene/101928461) in a 3D organotypic skin model derived from primary human keratinocytes. Following knockdown, the expression of MAP3K5 mRNA and protein would be quantified by qRT-PCR and Western blot. The cultures would then be exposed to a sub-lethal dose of a relevant stressor, like UV-B radiation. The impact on cell survival and apoptosis could be measured via immunohistochemical staining for cleaved caspase-3 in the tissue sections. A significant increase in both MAP3K5 levels and apoptosis in the knockdown cultures compared to controls would provide strong support for the hypothesis. **Therapeutic Potential:** As a lncRNA with a highly tissue-specific expression pattern, [MAP3K5 AS1](/details-gene/101928461) presents an attractive therapeutic target. If its overexpression is demonstrated to contribute to skin cancer by inhibiting apoptosis, it could be targeted for inhibition using topically delivered ASOs or siRNA-based therapies. Such an approach would aim to restore the pro-apoptotic function of MAP3K5 specifically in malignant keratinocytes, with a potentially favorable safety profile due to its limited expression in other tissues.