The **RNU7-155P** gene is classified as a pseudogene associated with small nucleolar RNA (snoRNA) sequences, which are involved in the maturation and modification of ribosomal RNA (rRNA). More specifically, this gene belongs to the family of U7 small nuclear RNAs, which play a critical role in the processing of pre-rRNA.

### 1. Associated Genes
While RNU7-155P itself is a pseudogene, it may be associated with other genes involved in the rRNA processing pathways. Some genes that could be conceptually mapped in relation to snoRNAs and their processing functions include:

- **SNORD50** (associated with small nucleolar RNA)
- **NSUN5** (involved in RNA methylation)
- **U3** (other snoRNA associated with rRNA)
- Various **RNase** family members (which are involved in rRNA processing).

However, specific interactions with genes are not commonly documented for RNU7-155P due to its status as a pseudogene.

### 2. Aging and Age-Related Diseases
Currently, there is limited direct information regarding the association of the RNU7-155P gene with aging or age-related diseases. Pseudogenes often do not have direct functional implications, but small RNAs and snoRNAs in general have been implicated in cellular processes that may affect aging, such as ribosome biogenesis and cellular senescence. Changes in RNA processing mechanisms, including those involving snoRNA, can be linked to the aging process and possibly mechanisms of diseases like cancer.

### 3. Drug Interactions
As a pseudogene, RNU7-155P is not directly targeted by drugs, nor are there known drug classes specifically interacting with it. However, disturbances in snoRNA interactions or regulatory pathways could hypothetically affect responses to some cancer therapies aimed at targeting RNA metabolism. 

Since snoRNAs play a role in modifying rRNA and thus in ribosome function, drugs that inhibit ribosomal function or affect RNA processing, like some chemotherapy agents or antibiotics, could indirectly be related if overall cellular RNA processing is affected. However, specific drugs should not be directly associated with this gene.

### 4. Pathways and Biological Processes
While RNU7-155P does not encode a protein product and is classified as a pseudogene, snoRNAs are known for their involvement in several critical biological processes. The general pathways and biological processes that entail snoRNAs include:

- **Ribonucleoprotein complex biogenesis**: Part of the assembly and maturation of ribonucleoproteins, especially ribosomes.
- **Ribosome biogenesis**: SnoRNAs like U7 can be involved in rRNA modification and processing, critical to producing functional ribosomes.
- **RNA processing**: Assisting in the post-transcriptional modification of rRNA transcripts.

In summary, RNU7-155P is primarily identified as a pseudogene influencing RNA biology but lacks the direct actionable insights that relate to therapeutic targets due to its non-coding nature. Further research may provide more clarity on its associations or implications, particularly relating to aging and disease.