### Detailed Information on CDC42EP4 Gene

**Gene Overview:**
- **Gene Symbol**: CDC42EP4
- **Function**: CDC42EP4 (CDC42 effector protein 4) is a member of the CDC42-binding protein family that plays a significant role in actin cytoskeleton organization. This protein interacts with Rho family GTPases, specifically CDC42 and TC10, in a GTP-dependent manner, influencing cellular processes like pseudopodia formation and changes in cell shape.

### 1. Associated Genes:
While specific gene interactions may not be explicitly mentioned in the summaries, CDC42EP4 may have associations with several genes involved in the Rho GTPase signaling pathways and cytoskeletal organization, such as:
- **CDC42**: The primary Rho GTPase that the CDC42EP4 protein is known to bind and act downstream of.
- **TC10 (also known as ARF7)**: Another GTPase that interacts with CDC42EP4.
- **RHOA**: Another member of the Rho family that could contribute to similar cellular functions.
- **RAC1**: A GTPase involved in cytoskeletal dynamics.
  
These genes can collectively affect processes related to cell migration, invasion, and shape changes.

### 2. Aging and Age-Related Diseases:
- Although specific studies linking CDC42EP4 directly to aging or age-related diseases are limited, alterations in cytoskeletal dynamics and actin remodeling are known to contribute to various age-related cellular processes, including:
  - **Cell Migration**: Aging cells often exhibit impaired migration capabilities that can be influenced by changes in the cytoskeleton.
  - **Cancer**: Since CDC42EP4 is involved in cell shape and motility, its dysregulation may also be implicated in cancer progression, a condition that is often associated with aging.
  
Research on CDC42EP4 specifically in the context of aging and related pathologies would need to be conducted to provide conclusive insights.

### 3. Drug Interactions:
Currently, specific drugs or drug classes that interact with the CDC42EP4 gene or its protein product have not been widely characterized in the literature. However, potential areas of interaction might include:
- **Cytoskeletal Inhibitors**: Such as cytochalasins and latrunculins that could affect actin dynamics.
- **GTPase inhibitors**: Drugs that target Rho family GTPases could, by extension, interact with CDC42EP4's function in regulating actin dynamics.

### 4. Pathways and Biological Processes:
CDC42EP4 is involved in several cellular pathways and biological processes, including:
- **Actin Cytoskeleton Organization**: Directly influences the polymerization of actin filaments and the formation of cellular protrusions such as lamellipodia and filopodia.
- **Signal Transduction**: Engages in signaling pathways mediated by CDC42, impacting cell fate decisions, migration, and adhesion.
- **Cell Morphogenesis**: Plays a role in the structural changes of cells required for processes such as differentiation and tissue remodeling.

In conclusion, CDC42EP4 is an important gene associated with the regulation of the actin cytoskeleton and is involved in cellular dynamics that are crucial for various biological processes. While some functional associations and roles in diseases are outlined, ongoing research may uncover more about its implications in aging and therapeutic interventions.