The IQGAP2 gene encodes a protein that plays significant roles in cellular processes, and its implications in various physiological and pathological contexts have been an area of research interest. Below is a detailed overview based on your request:

### 1. Gene Associations
While the summaries provided do not mention specific genes associated with IQGAP2, this gene has been implicated in numerous cellular pathways and may interact with several other genes, particularly those involved in signaling and cytoskeletal dynamics, including:
- **CDC42** and **RAC1**: Both are small GTPases that IQGAP2 binds to for regulating cell morphology.
- **IQGAP1**: A homologous member of the IQGAP family that may share functional roles.
- Other proteins involved in signaling pathways, such as those in the MAPK and Wnt signaling pathways, which may have downstream effects on gene expression.

### 2. Aging and Age-Related Diseases
The direct associations of IQGAP2 with aging or age-related diseases are not extensively documented, but some known implications may include:
- **Tumor Suppression**: Given IQGAP2's role as a tumor suppressor, alterations in its expression or function may contribute to age-related increases in cancer risk.
- **Regulation of Cytoskeletal Dynamics**: As aging can impact cell morphology and motility, dysregulation of IQGAP2 may affect tissue regeneration and repair processes, often compromised with age.
- **Innate Immune Response**: Dysfunctional antiviral responses have been associated with aging and increased susceptibility to infections, potentially linking IQGAP2 with age-related decline in immune function.

### 3. Drug Interactions
Specific drug interactions directly involving IQGAP2 are not commonly noted. However, since IQGAP2 is involved in various signaling pathways, it may indirectly influence responses to drugs acting on pathways it interacts with. The following drug classes may exhibit indirect interactions:
- **Cytoskeletal Modulators**: Drugs that target actin dynamics and microtubule stability could modulate pathways involving IQGAP2.
- **Antiviral Agents**: Since IQGAP2 is implicated in innate immune responses, its function may influence the efficacy of certain antiviral treatments.
  
It is advisable to consult databases like DrugBank or clinical studies for specific drug interactions involving IQGAP2 more extensively.

### 4. Pathways and Biological Processes
IQGAP2 is involved in several key pathways and biological processes, including:
- **Cytoskeletal Organization**: Regulation of cell shape, movement, and integrity via interactions with actin and microtubules.
- **Cell Adhesion**: Interaction with cell adhesion molecules, influencing tissue morphology and integrity.
- **Signal Transduction**: Participation in signaling pathways, including those activated by small GTPases, which affect various cellular responses such as proliferation and motility.
- **Cell Migration**: Role in processes essential for wound healing, immune response, and metastasis in cancer.
- **Antiviral Mechanisms**: Participation in innate immune responses against viral infections, highlighting potential roles in immune defense.

Overall, IQGAP2 serves as a crucial connector in cellular signaling, morphology, and immune function. The gene’s understanding continues to evolve with ongoing research, particularly in its potential roles in cancer and aging. For further details and updates, one could refer to scientific literature and databases such as NCBI Gene, UniProt, and KEGG PATHWAY Database.