The CSTF3-DT gene, also known as CSTF3 divergent transcript, is a non-coding RNA gene located on chromosome 11. As a divergent transcript, it is positioned in the opposite direction to the protein-coding gene CSTF3, which encodes the cleavage-stimulation factor subunit 3. 

### 1. Associated Genes:
While CSTF3-DT itself is primarily a non-coding RNA and its role is yet to be fully elucidated, it may be indirectly associated with the coding gene CSTF3. The CSTF3 gene itself is involved in mRNA polyadenylation, and thus, CSTF3-DT could be regulated by or have regulatory roles that involve interactions with other genes involved in mRNA processing and stability.

Other genes that may have broader associations, particularly in pathways involving RNA stability and processing include:
- **CSTF2**: Another component of the cleavage-stimulation factor involved in polyadenylation.
- **CPSF1 (Cleavage and Polyadenylation Specificity Factor 1)**: This protein plays a role in the termination of transcription and processing of mRNA.

### 2. Aging and Age-related Diseases:
While specific data regarding CSTF3-DT and aging or age-related diseases is limited, non-coding RNAs in general have been implicated in cellular aging and the regulation of genes involved in these processes. Alterations in the expression levels of non-coding RNAs, including long non-coding RNAs (lncRNAs), can affect cellular senescence and the development of various age-related diseases such as cancer and neurodegenerative disorders. However, more research is needed to confirm any direct association of CSTF3-DT with aging or specific diseases.

### 3. Known Drug Interactions:
As of the current knowledge base, there are no specific drugs or drug classes that have been documented to directly interact with CSTF3-DT. Since it is a non-coding RNA, it may not be a direct target for pharmacological agents. Nonetheless, the genes associated with CSTF3 and mRNA processing pathways may have implications for drug interactions indirectly.

### 4. Pathways and Biological Processes:
CSTF3-DT may be involved in the following biological processes and pathways indirectly through its association with CSTF3:
- **mRNA processing and polyadenylation**: This is critical for mRNA stability and translation.
- **Gene expression regulation**: It may play a role in the regulation of other mRNAs indirectly.
- **Cell cycle regulation and differentiation**: Alterations in mRNA processing can impact pathways involved in cell proliferation and differentiation.

Overall, while some information about CSTF3-DT is available, ongoing research is needed to fully elucidate its functions, interactions, and possible implications in various biological processes, including aging and disease.