The SP2-DT gene, also known as Sp2 downstream transcript, is a non-coding RNA that is thought to play a role in the regulation of gene expression through its interaction with the Sp2 transcription factor. While specific detailed information about SP2-DT may be limited, I can provide insights based on the known gene functions and related genomic context.

### 1. Associated Genes
While specific associations of SP2-DT with other genes may not be well-documented, related genes could include those that are implicated in the same regulatory pathways or those that interact with SP2. Some genes to consider could be:

- **SP2**: As the primary transcription factor, SP2 could be the most directly related gene.
- **SP1**: Another known transcription factor involved in similar pathways.
- **CTCF**: A regulatory protein that may associate with SP2-mediated regulation.

The above genes are involved in transcriptional regulation and could have overlapping roles in gene expression modulation.

### 2. Aging and Age-Related Diseases
While there might not be direct studies explicitly linking SP2-DT to aging or age-related diseases, non-coding RNAs are increasingly recognized for their roles in cellular aging and longevity. Alterations in the expression of various non-coding RNAs can influence pathways such as inflammation, oxidative stress, and cellular senescence, which are crucial in age-related diseases. 

Research into the regulatory roles of SP2 and non-coding RNAs points towards their potential involvement in age-related changes in phenotype, potentially affecting cancer development, neurodegeneration, and metabolic disorders, but more specific studies on SP2-DT would be required to clarify this.

### 3. Drug Interactions
There is currently no well-documented evidence of specific drugs or drug classes that directly target SP2-DT. However, considering the broader functional context of SP2 and other transcription factors, general inhibitors of transcription or those affecting chromatin remodeling (like HDAC inhibitors) may have indirect effects on the regulation of genes influenced by SP2 and possibly SP2-DT through changes in transcriptional activity.

### 4. Pathways and Biological Processes
Though SP2-DT as a non-coding RNA may not be involved in classical signaling pathways, it may be implicated in the following biological processes:

- **Gene Expression Regulation**: Through its interaction with transcription factors such as SP2, the SP2-DT may play a role in modulating the transcription of downstream genes.
- **Developmental Processes**: Non-coding RNAs play crucial roles in development, including cell differentiation and organogenesis.
- **Cell Proliferation and Survival**: Given the connection to transcription factors, SP2-DT may also influence cell cycle regulation and survival pathways.

Overall, while the SP2-DT gene is emerging in the landscape of gene regulation via its interaction with SP2 and possibly other factors, more specific research would be required to delineate its exact roles in disease contexts, drug interactions, and precise pathways.