TIMM8B (translocase of inner mitochondrial membrane 8 homolog B) is a mitochondrial intermembrane space chaperone that facilitates protein import and insertion into the mitochondrial inner membrane 1. It participates in transferring beta-barrel precursors from the TOM complex to the SAM complex and protects hydrophobic precursors from aggregation during transit through the intermembrane space. In cancer biology, TIMM8B is upregulated in ovarian cancer and promotes oxidative phosphorylation and glycolysis by suppressing the mtROS/ASK1/JNK signaling pathway, enhancing cancer cell proliferation, migration, and invasion while inhibiting apoptosis 2. Differential TIMM8B expression is also observed in colon cancer associated with type 2 diabetes mellitus, suggesting involvement in field cancerization 3. TIMM8B was identified as a component of cuproptosis-related prognostic models in ovarian cancer 4. In neurological contexts, TIMM8B overexpression protects against ischemic stroke in aged mice by preserving mitochondrial ultrastructure and reducing neuronal apoptosis, particularly in OPA1-deficient conditions 1. Additionally, TIMM8B was identified as a pyroptosis-associated diagnostic biomarker for Parkinson's disease 5 and as a potential sepsis outcome predictor 6. These findings suggest TIMM8B represents a therapeutic target for mitochondrial dysfunction-related diseases.