The PSME2P2 gene, also referred to as a pseudogene, is part of the Proteasome regulatory subunit gene family. Here’s an overview based on your requests:

### 1. Associated Genes:
The PSME2P2 gene is linked to several other genes, mainly those involved in the proteasome and protein degradation pathways. While specific associations can vary, here are some genes that may be related:

- **PSME1**: Plays a role in the proteasome regulatory complex.
- **PSME2**: The functional counterpart associated with the proteasome activity.
- **PSMA and PSMB units**: A group of genes that encode different subunits of the proteasome complex.

### 2. Aging and Age-Related Diseases:
Current literature does not provide extensive information specifically linking PSME2P2 to aging or age-related diseases. However, given its connection to the proteasome system, which is critical for protein homeostasis and degradation, any dysfunction in proteasomal activity can contribute to cellular senescence and age-related diseases. In general, the aging process is associated with a decline in proteasome function, which can affect various signaling pathways and accumulation of damaged proteins.

### 3. Drug Interactions:
As a pseudogene, PSME2P2 is not typically a direct target for drug interactions. However, due to its association with the proteasome system, it’s worthwhile to note that protease inhibitors or drugs aiming at the proteasome, like:

- **Bortezomib**: A proteasome inhibitor used in the treatment of multiple myeloma and certain types of lymphoma.
- **Carfilzomib**: Another proteasome inhibitor used in similar contexts.

These drugs don't directly target PSME2P2 but are related in the pathway of proteasomal activity where PSME2P2 is also implicated.

### 4. Pathways and Biological Processes:
- **Proteasome-mediated ubiquitin-dependent protein catabolism**: The proteasome, in which PSME2P2 is involved, is crucial for degrading ubiquitin-tagged proteins.
- **Response to stress**: The proteasome plays a major role in the cellular response to oxidative stress and maintaining cellular homeostasis.
- **Cell cycle regulation**: Regulation of protein levels during various stages of the cell cycle is essential for proper division and responses to DNA damage.

In summary, while PSME2P2 itself is a pseudogene and does not directly participate in biological processes or pathways, its associations with other proteasomal genes underscore its potential relevance in proteolytic functions, and indirectly related mechanisms in aging and disease contexts. Further studies may elucidate more specific details about this gene’s role in health and disease.