The DENND11 gene, located on chromosome 13, encodes a protein that functions primarily as a guanine nucleotide exchange factor (GEF). Here are the additional details as requested:

### 1. Other Associated Genes
DENND11 may be functionally connected to several other genes involved in neuronal function and GTPase regulation, including but not limited to:
- RhoA (Ras homolog family member A): A small GTPase involved in regulating the cytoskeleton.
- Rac1: Another small GTPase that is associated with actin dynamics.
- Cdc42: A member of the Rho family of GTPases that regulates various cellular functions, including cell migration, proliferation, and differentiation.

Though not exhaustive, these genes have implications in pathways relevant to neuronal development and function.

### 2. Aging and Age-Related Diseases
While specific studies directly linking DENND11 to aging or age-related diseases are limited, its role in neuritogenesis and recovery after cerebral ischemia suggests it may have implications in neurodegenerative diseases and aging. Dysregulation of GEFs like DENND11 is suggested to contribute to neurodegenerative processes as they are crucial for maintaining neuronal health and plasticity.

Furthermore, GTPases and their regulators play significant roles in aging in the context of synaptic function. Alterations in these pathways are often observed in age-related neurodegenerative conditions, such as Alzheimer's disease and vascular dementia, indicating a potential association of DENND11’s functionality with these age-related processes.

### 3. Drugs and Drug Classes
As of the latest updates, there are no specific drugs or drug classes directly targeting DENND11 mentioned in the literature or databases. However, therapeutic strategies that indirectly impact GTPase activity may influence pathways where DENND11 is involved. Some potential interactions include:
- **Antidepressants:** Some studies suggest modulation of GTPase pathways may influence the action of CNS-active pharmaceuticals.
- **Neuroprotective agents:** Substances that protect neurons from damage might exert influence over signaling pathways that DENND11 could regulate.

Further research may identify specific drug interactions as this area of study is still developing.

### 4. Pathways and Biological Processes
DENND11 is implicated in various biological processes and signaling pathways that include but are not limited to:
- **Neuritogenesis:** Involved in the formation and extension of neuronal processes.
- **Neuronal Recovery:** Plays a role in recovery after ischemic events, particularly in the hippocampus.
- **GTPase Activation:** Involved in the regulation of small GTPases, which are crucial for numerous cellular processes including growth, differentiation, and cytoskeletal dynamics.
- **Signal Transduction Pathways:** Contributes to the signaling network that can affect neuronal cell signaling and overall signaling cascades relevant to cognitive functions.

Overall, DENND11 plays an essential role in neuronal signaling and health, making it a gene of potential interest in the context of neuroscience research and possibly in the future my developing therapies for age-related neurological conditions.