The SRSF12 gene, also known as Serine/Arginine Rich Splicing Factor 12, is part of the serine/arginine-rich (SR) protein family, which plays critical roles in pre-mRNA splicing. Here is a detailed overview based on your requests:

### 1. Gene Associations
SRSF12 is involved in post-transcriptional regulation and splicing processes, and it is associated with other splicing-related genes and proteins. While specific interactions can vary widely depending on the context and specific cellular conditions, notable related genes include:
- **SRSF1**: Another member of the SR protein family involved in splicing.
- **SRSF2**: Similar to SRSF12, it also plays a role in mRNA processing and alternative splicing.
- **SRSF3**: This splicing factor interacts with various proteins involved in the spliceosome complex.

Other splicing factors and mRNA processing genes may have functional relationships with SRSF12, particularly within the spliceosome dynamics.

### 2. Aging and Age-related Diseases
The SRSF12 gene has been implicated in processes related to aging through its role in splicing regulatory dynamics:
- Altered splicing caused by dysfunctional splicing factors like SRSF12 may contribute to age-related diseases such as **cancers** and neurodegenerative disorders (e.g., Alzheimer's disease). 
- Aberrant alternative splicing is a common feature in aging cells, leading to the production of dysfunctional proteins that can contribute to cellular senescence and age-associated pathologies.

### 3. Drug Interactions
While there is no extensive list of drugs specifically targeting SRSF12, it is known that splicing factors are often affected by inhibitors of general splicing and transcription:
- **Splicing modulators**: Compounds like **E7107** or various other small molecules that alter RNA splicing could indirectly influence SRSF12’s activity.
- **Cancer therapies**: Some chemotherapeutic agents, which aim at modulating splicing mechanisms, may also impact SR proteins, including SRSF12.

Precise interactions with specific drugs might require targeted studies, as the data may evolve with ongoing research.

### 4. Pathways and Biological Processes
SRSF12 has several known functions and involvement in various biological processes, including:
- **RNA Splicing**: Integral in the recognition of 5' splice sites and in the regulation of alternative splicing.
- **mRNA Processing**: Acts dynamically in the assembly of the spliceosome complex.
- **Transcription and Translation**: Regulates gene expression at the post-transcriptional level.
- **Nuclear Export of mRNA**: Participation in the export of fully processed mRNA from the nucleus to the cytoplasm.

### Conclusion
SRSF12 is a key player in the fine-tuning of mRNA splicing and has proposed associations with aging and complex diseases. While ongoing research might expand our understanding of SRSF12's role in health and disease, the full breadth of its biological functions and interactions is an active area for investigation.