The **RNU7-164P** gene is one of the small nucleolar RNA (snoRNA) genes, which primarily are involved in the biogenesis and modification of ribosomal RNA (rRNA). snoRNAs are considered to be crucial for the processing and 2'-O-methylation of rRNA, with various subclasses contributing to distinct functions in ribosome assembly and function. Here’s a detailed overview based on your requests:

### 1. Associated Genes
Although specific associations may not be well detailed in existing literature for RNU7-164P, small nucleolar RNAs often share regulatory networks with other snoRNAs, small nuclear RNAs (snRNAs), and various ribosomal proteins. In a broader context, snoRNAs can interact with genes involved in RNA metabolism, such as:

- **P53 (TP53)**: involves multiple pathways related to growth, genome stability, and cellular response to stress, which might have indirect relationships with snoRNA functions.
- **RRP1B**: involved in ribosome biogenesis.
  
The specific interactions of RNU7-164P with other genes might be subject to ongoing research, and functional validation is often required.

### 2. Aging and Age-Related Diseases
While RNU7-164P does not have extensive direct literature regarding its association with aging or age-related diseases, snoRNAs in general have been implicated in the regulation of cellular growth and proliferation, which can influence aging. Some snoRNAs have been studied for their roles in conditions that worsen with age, such as:

- **Neurodegenerative diseases**: Because rRNA modifications are crucial for proper ribosomal function, any disruptions in snoRNA activity could lead to protein synthesis issues, contributing to neurodegeneration.
- **Tumorigenesis**: Imbalanced expression of snoRNAs can be involved in cancer development, as they play a role in regulating the expression of oncogenes or tumor suppressor genes.

There is an emerging interest in the role of small non-coding RNAs, including snoRNAs like RNU7-164P, in cellular senescence and age-related pathologies.

### 3. Drug Interactions
The specific interactions of drugs with RNU7-164P are not well-documented in public databases or literature. However, RNA-targeted therapies, including those involving RNA interference or modifications aimed at altering the expression profiles of snoRNAs or related cellular machinery, may have indirect implications for its activity. Also, agents that broadly impact RNA turnover or modification might modulate the activity of snoRNAs. 

No specific drugs or drug classes have been identified as targeting RNU7-164P directly, largely due to the novel nature of snoRNA-targeted therapies.

### 4. Pathways and Biological Processes
The RNU7-164P gene is primarily associated with:

- **Ribosome biogenesis**: It plays a key role in the modification of rRNA, which is essential for assembling ribosomes necessary for protein synthesis.
- **rRNA methylation**: RNU7-164P is involved in 2'-O-ribose methylation of rRNA.
- **Cellular stress responses**: Changes in snoRNA levels may influence the cellular response mechanisms to various stressors due to the involvement of ribosome function in protein synthesis under stress conditions.

These activities link RNU7-164P to core cellular processes, ensuring the proper production of proteins, which is vital for both normal cellular function and overall organismal health.

### Summary
RNU7-164P, while a relatively lesser-studied gene, highlights the complexity of snoRNA functions in ribosome biogenesis and cellular metabolism. As research continues, additional insights into its roles in aging, disease, and therapeutic interventions may emerge, elucidating its biological significance further.