The CETN2 gene encodes a calcium-binding protein that plays a vital role in the structure and function of the centrosome, a crucial cellular organelle important for microtubule organization, centriole duplication, spindle formation, and cytokinesis. Here are additional details related to your queries:

### 1. Associated Genes
While the summaries mention CALM1 and CCP110 as interacting partners, other genes associated with CETN2 include:
- **CETN1**: Another member of the calmodulin superfamily.
- **CCNA2**: Cyclin A2, involved in cell cycle regulation and interactions with centrosomal functions.
- **TPX2**: A gene that is involved in spindle assembly and localization of microtubule organization.

### 2. Aging and Age-Related Diseases
Although specific associations of CETN2 with aging are less documented, its critical role in centrosome integrity and cell division suggests that dysregulation could contribute to age-related diseases, particularly:
- **Cancer**: Aberrant centrosome function is known to be a hallmark of cancer, leading to genomic instability which is more prevalent in aging cells.
- **Neurodegeneration**: Similar to how disturbances in microtubule dynamics affect neuronal function, malfunction of CETN2 could contribute to neurodegenerative diseases.

### 3. Drug Interactions
Currently, there is limited specific information on drugs that directly interact with CETN2. However, drugs targeting pathways involved in microtubule dynamics and centrosome stability, such as:
- **Taxanes (e.g., Paclitaxel)**: Used in cancer therapy, which disrupt microtubule function.
- **Vinca alkaloids**:  Also known to interact with microtubule dynamics and may influence the functions of genes such as CETN2 indirectly through their action on the cytoskeleton.

### 4. Pathways and Biological Processes
CETN2 is involved in several key pathways and biological processes including:
- **Cell Cycle Regulation**: Especially in mitosis where centrosome function is crucial for accurate chromosome segregation.
- **Cytokinesis**: Essential for the final separation of the two daughter cells post-mitosis.
- **Microtubule Organization**: Plays roles in organizing microtubules necessary for cell structure and transport mechanisms.
- **Response to Calcium Ion**: As a calcium-binding protein, CETN2 might be implicated in calcium-mediated signaling pathways influencing cellular responses.

Additional biological pathways include:
- **Regulation of Gene Expression**: Through interactions with partners that affect centrosomal functions and their downstream signaling.

Overall, CETN2 is a pivotal player in the maintenance of cellular integrity during division and organization processes, with implications in aging and disease due to its structural and regulatory roles at the centrosome. Further studies may elucidate the specific pathways and mechanisms by which it influences age-related cellular stability and pathology.