### WHSC1L2P Gene Overview

- **Gene Symbol**: WHSC1L2P
- **Location**: This gene is located on chromosome 4 in humans. 
- **Type**: WHSC1L2P is classified as a pseudogene; it is a non-functional segment of DNA that is similar to a gene but does not produce a functional gene product.

### 1. Associated Genes

While WHSC1L2P itself is a pseudogene and thus does not encode proteins, it is part of a family of genes related to histone modification and chromatin remodeling, as seen in the regulation of gene expression. Its more functional relatives could include the following:

- **WHSC1**: This gene encodes a histone methyltransferase involved in the regulation of chromatin structure and is associated with multiple cellular processes including transcriptional regulation. 
- **NSD1 (Nuclear receptor binding SET domain protein 1)**: Another histone methyltransferase implicated in developmental disorders.
- **KMT2A (Lysine methyltransferase 2A)**: Has roles in transcriptional regulation and is involved in several forms of cancer.

### 2. Aging or Age-Related Diseases

The WHSC1L2P gene itself may not have direct associations with aging or age-related diseases, given that it is a pseudogene. However, its closely related functional counterparts like WHSC1 have been studied in the context of chromatin regulation and its implications in cellular aging, senescence, and related diseases, including some cancers and metabolic disorders. Research into the broader family of genes might show indirect ties to age-related cellular processes.

### 3. Drug Interactions

As a pseudogene, WHSC1L2P is not known to have any direct interactions with drugs or drug classes. However, the functional genes in the WHSC1 family, particularly WHSC1 and NSD1, may be involved in pathways targeted by certain pharmaceuticals, especially in the context of cancer therapies or gene editing technologies focusing on epigenetic modifications.

### 4. Pathways and Biological Processes

As WHSC1L2P does not encode a functional protein, it does not actively participate in biological pathways. Nevertheless, the gene is located near and is associated with other genes that do:

- **Epigenetic regulation**: Functions in modifying histones (like methylation).
- **Chromatin remodeling**: Changes in chromatin structure can influence gene expression, impacting cellular activities from differentiation to apoptosis.
- **Developmental processes**: Genes related to WHSC1L2P are implicated in various developmental processes, especially in the context of embryogenesis and tissue development due to their roles in transcription regulation.

### Conclusion

In summary, WHSC1L2P is a pseudogene with potential relevance given its genomic context. It may share regulatory roles with functional genes related to histone modification and chromatin dynamics, though it does not itself produce a protein or have direct pharmacological or age-related implications. For further insights, studies on its associated functional relatives would provide additional relevant information regarding aging, disease mechanisms, and therapeutic targets.