The KRT87P gene, also referred to as a pseudogene associated with the keratin family, is part of the broader keratin gene cluster. Keratins are a group of fibrous structural proteins that are key components of hair, skin, and nails. They play critical roles in providing mechanical support and barrier functions in epithelial cells.

### 1. Associated Genes
KRT87P is categorized as a pseudogene of the keratin family, particularly related to hair keratins. This family includes a variety of keratin genes, with notable associations:
- **KRT86**: A hair keratin that shares similarities in structure.
- **KRT87**: Another hair keratin that is closely related to KRT87P.
- **KRT71**: Involved in hair quality and structure.

These keratins can work together within a keratinization process, contributing to the formation and integrity of hair and other epithelial structures.

### 2. Aging and Age-Related Diseases
The keratin gene family, including the KRT87P gene, has been studied for possible roles in aging and age-related conditions such as:
- **Alopecia**: The loss of hair can be influenced by the expression of keratin genes.
- **Skin aging**: Altered expression of keratin genes can affect skin elasticity and barrier function, contributing to visible signs of aging.
- **Dermatological diseases**: Dysregulation of keratin expression is linked to various skin disorders, which can increase with age.

However, specific research directly linking KRT87P with mechanisms of aging or specific age-related diseases is limited, indicating further studies may be necessary to elucidate these connections.

### 3. Drug Interactions
Currently, there are no specific drugs or drug classes directly known to interact with the KRT87P gene. However, keratin stability and expression can be affected by:
- **Topical treatments**: Used for hair and skin health, though these typically target broader keratinization pathways rather than specific genes.
- **Hormonal therapies**: Hormones can influence keratin expression, but individual interactions are not directly documented for KRT87P.

Further pharmacogenetic studies may highlight specific interactions in the future.

### 4. Pathways and Biological Processes
KRT87P, as a member of the keratin gene family, is involved in several key biological processes:
- **Keratinization**: The process by which keratinocytes produce keratin, forming a protective layer in the skin and hair follicles.
- **Epithelial cell differentiation**: Critical for the development and maintenance of the epidermis and hair follicle structure.
- **Cytoskeletal organization**: Keratins contribute to the structural integrity and resilience of epithelial cells.

These pathways are fundamental for maintaining skin health, hair growth, and overall epithelial integrity, all crucial for organism homeostasis.

In summary, while KRT87P primarily functions as a keratin pseudogene related to hair, its precise roles in aging, disease, drug interactions, and pathways may require further detailed study to uncover its specific contributions and regulatory mechanisms.