The **PRRC2C** gene (Proline-Rich Coiled-Coil 2C) encodes a protein that plays a significant role in stress granule assembly and has been implicated in various cellular processes. Below are detailed insights based on your request.

### 1. Associated Genes:
While specific genes directly associated with PRRC2C are not typically detailed in the summaries provided by major databases like NCBI and UniProt, PRRC2C is known to interact with several proteins involved in stress granule dynamics and other cellular processes. Some associated genes might include:

- **G3BP1 (GTPase-activating protein)**: Involved in stress granule assembly.
- **FMR1 (Fragile X mental retardation 1)**: Has roles in RNA metabolism and may influence the action of PRRC2C.
- **DDX6 (DEAD-box helicase 6)**: Another key player in the assembly and disassembly of stress granules.
  
Research literature can provide a comprehensive list of interacting proteins that may not be explicit in basic summaries.

### 2. Aging and Age-Related Diseases:
PRRC2C has been implicated in cellular responses to stress, which often become more pronounced with aging. Although specific direct associations with age-related diseases are still being elucidated, stress granules are linked to several neurodegenerative diseases (such as Alzheimer's) and other aging-related conditions due to their function in managing cellular stress responses. The accumulation or dysregulation of stress granules could potentially contribute to the pathogenesis of these diseases. 

### 3. Drug Interactions:
There are currently no specific drugs or drug classes that are well-documented in direct interaction with PRRC2C. However, considering its role in stress granule assembly, any compounds known to modulate stress responses or cellular stress pathways may indirectly affect PRRC2C functions. This area remains active for research, especially in understanding pharmacological treatments for stress-related disorders.

### 4. Pathways and Biological Processes:
PRRC2C is involved in several biological processes, including:

- **Stress Granule Assembly**: PRRC2C is critical in the formation of stress granules, which are cytoplasmic ribonucleoprotein complexes that form in response to cellular stress.
- **RNA Regulation**: It plays a role in the regulation of mRNA metabolism.
- **Cellular Stress Responses**: The protein is engaged in cellular responses to various stressors, thus impacting cell survival and functionality under duress.

Additionally, work by various researchers indicates that it may influence broader pathways related to cell cycle regulation and apoptosis, as these processes can be affected by stress granule dynamics.

### Summary:
The PRRC2C gene is an important player in the formation of stress granules and may have broader implications in aging and related diseases through its roles in stress responses and RNA regulation. Further research is necessary to explore its potential drug interactions and specific associations with other genes.