| First Author | Lee YK | Year | 2025 |
| Journal | Nat Commun | Volume | 16 |
| Issue | 1 | Pages | 10792 |
| PubMed ID | 41315293 | Mgi Jnum | J:376340 |
| Mgi Id | MGI:8267851 | Doi | 10.1038/s41467-025-66356-w |
| Citation | Lee YK, et al. (2025) Bipolar and schizophrenia risk gene AKAP11 encodes an autophagy receptor coupling the regulation of PKA kinase network homeostasis to synaptic transmission. Nat Commun 16(1):10792 |
| abstractText | Human genomic studies have identified protein-truncating variants in AKAP11 associated with both bipolar disorder (BD) and schizophrenia (SCZ), implicating a shared disease mechanism driven by loss-of-function. AKAP11, a protein kinase A (PKA) adapter, plays a key role in degrading the PKA-RI complex through selective autophagy. However, the neuronal functions of AKAP11 and the impact of its loss-of-function remains largely uncharacterized. Through multi-omics approaches, cell biology, and electrophysiology analysis in mouse models and human induced neurons, we delineate a central role of AKAP11 in coupling PKA kinase network regulation to synaptic transmission. Loss of AKAP11 distorts compartment-specific PKA and GSKappa3alpha/beta activities and impairs cellular functions that significantly overlap with pathways associated with BD and SCZ. Moreover, we identify the interactions between AKAP11, the PKA-RI adapter SPHKAP, and the ER-resident autophagy-related proteins VAPA/B, which co-adapt and mediate PKA-RI complex degradation in neurons. Notably, AKAP11 deficiency impairs neurotransmission, providing key insights into the mechanism underlying AKAP11-associated psychiatric diseases. |
