The WDR25 gene (WD repeat domain 25) is a member of the WD repeat family of proteins and plays significant roles in various cellular processes. Below is a detailed overview that complements the information you provided.

### 1. Associated Genes
While specific associations can vary depending on the context (such as experimental conditions or disease states), WDR25 has been implicated in interactions with several other genes and proteins involved in cell signaling and regulatory networks. Notable genes and their associations may include:

- **WDR20**: Another gene with WD repeat domains, potentially involved in similar or overlapping pathways.
- **TGFBR2**: TGF-beta receptor type II, as WDR25 has been shown to interact with components of the TGF-beta signaling pathway.
- **CCND1**: Cyclin D1, involved in cell cycle regulation.
- **PIK3CA**: Phosphoinositide 3-kinase catalytic subunit alpha, involved in the signaling pathways that drive cell growth and survival.

### 2. Aging and Age-Related Diseases
Although direct associations with aging have not been extensively studied, WDR25 is thought to play roles in mechanisms relevant to age-related diseases due to its involvement in cellular signaling pathways:

- **Cell Cycle Control**: WDR25 is involved in processes that can impact cellular senescence and cancer progression.
- **Apoptosis**: The role of WDR25 in promoting or inhibiting apoptosis may relate to age-related degenerative diseases.
- **Signal Transduction**: Altered signaling pathways over the lifespan may have implications in age-related pathologies such as neurodegenerative disorders.

Certain polymorphisms in WDR25 or its expression levels may potentially correlate with age-related conditions, although concrete conclusions in humans require further study.

### 3. Drug Interactions
Currently, data on specific drugs or drug classes interacting directly with WDR25 is limited. However, given its role in signaling pathways (e.g., TGF-beta signaling), it may affect responses to drugs that target these pathways. Drugs such as:

- **TGF-beta inhibitors**: These could indirectly relate to WDR25 functions, although the specific interaction with WDR25 is not well established.
- **Cancer therapies**: Given its role in cell cycle regulation, WDR25 may play a role in the efficacy or response to various chemotherapeutics, though direct interactions are not well documented.

### 4. Pathways and Biological Processes
WDR25 is involved in several important biological processes and has been implicated in various pathways, such as:

- **TGF-beta Signaling Pathway**: WDR25 has been identified as a component of the TGF-beta receptor complex, which is crucial for cellular responses to TGF-beta signaling.
- **Cytokine Signaling**: Involved in immune responses and inflammatory processes.
- **Cell Cycle Regulation**: Implicated in the molecular mechanisms that control progression through the cell cycle.

**Biological processes** including:
- Regulation of apoptosis
- Protein localization
- Response to extracellular stimuli
- Signal transduction

### Conclusion
The WDR25 gene encodes a protein with significant functional implications in various cellular pathways. While more research is needed to fully characterize its associations with other genes, contributions to aging, drug interactions, and biological pathways highlight its potential relevance in health and disease.