The **GPSM2** gene, also known as **G-protein signaling modulator 2**, plays a significant role in various biological processes associated with cellular signaling. Below, I've expanded on your inquiry with additional details regarding other gene associations, aging-related details, drug interactions, and pathways.

### 1. Other Genes Associated with GPSM2
While the summaries provided do not mention specific associated genes, GPSM2 is known to interact with several key proteins involved in G protein signaling and cellular division processes. Some notable genes include:
- **NUMA1 (Nuclear Mitotic Apparatus Protein 1)**: This protein is critical for mitotic spindle organization and is directly associated with GPSM2.
- **GNAI1, GNAI3**: These are G protein alpha subunits whose activity is influenced by GPSM2 through its guanine nucleotide dissociation inhibitor (GDI) activity.
- **ITPR1 (Inositol 1,4,5-trisphosphate receptor type 1)**: Part of the signaling pathways influenced by G proteins.

### 2. Aging or Age-Related Disease Associations
While specific studies directly linking GPSM2 to aging are limited, the gene plays a key role in cell division and differentiation processes, which are critical in aging and age-related diseases:
- **Neurological Disorders**: Given the role of GPSM2 in neuroblast division, abnormalities may contribute to age-related neurodegenerative diseases.
- **Hearing Loss**: Mutations related to GPSM2 result in autosomal recessive nonsyndromic deafness (DFNB82), which may further expand on age-related hearing decline in individuals with this genetic background.

### 3. Drug Interactions
Currently, there are no specific drugs or drug classes explicitly targeting GPSM2 documented in major pharmacological databases as of October 2023. However, since GPSM2 is involved in G protein signaling pathways, broader classes of drugs acting on G protein-coupled receptors (GPCRs) or associated pathways could indirectly impact its regulatory roles.

### 4. Pathways and Biological Processes Involved
GPSM2 is implicated in multiple critical biological processes and signaling pathways:
- **Cell Cycle Regulation**: It plays vital roles in mitotic spindle orientation and organization during cell division, particularly in the metaphase stage.
- **Neurogenesis**: Involvement in neuronal differentiation and development, especially in the context of hearing and neuronal function.
- **G Protein Signaling Pathways**: Acts as a GDI for Gαi proteins, modulating various cellular responses influenced by GPCRs.

**Additional Biological Processes**:
- Cortical dynein-dynactin complex recruitment
- Asymmetric cell division
- Regulation of cell polarity during division

### Summary
GPSM2 is an essential gene that influences cellular signaling mechanisms, particularly in the context of neuroblast division and mitotic spindle organization. Its role in hearing and possible involvement in neurodegenerative processes highlights its clinical significance. Further research may uncover more about its links to age-related diseases and interactions with pharmaceutical agents.