IMMUNOLOGY2026™ Conference Recordings For Attendees-Discovery of a novel innate immune cell death pathway, mitoxyperilysis

Video Transcription

Video Summary

Yaqiu Wang presented a new cell death pathway called <strong>mitotoxic pyrolysis</strong>, linking <strong>innate immune activation</strong> with <strong>metabolic starvation</strong>. In bone marrow-derived macrophages, combining <strong>Toll-like receptor stimulation</strong> with <strong>carbon-starvation media</strong> caused strong lytic cell death, while either condition alone did not. Known death pathways such as apoptosis, pyroptosis, necroptosis, and ferroptosis were ruled out. The key mechanism involved <strong>oxidative stress from mitochondria</strong>: mitochondria became trapped at the cell periphery, causing <strong>localized lipid peroxidation</strong> and membrane damage until the cell burst. <strong>M2 inhibitors</strong> reduced death by restoring mitochondrial mobility and actin-dependent membrane repair. In mice, combining <strong>fasting and LPS</strong> produced strong tumor-killing effects, suggesting therapeutic potential for cancer. Wang also noted ongoing work to identify the exact effector proteins and explore roles in infection.

Meta Tag

Date April 19, 2026 9:17 AM - 9:37 AM

Room Ballroom

Session Major Symposium H: Resolution of Inflammation

Speaker Yaqiu Wang

Track Cellular Adhesion, Migration, and Inflammation (CAM)

Year 2026

Keywords

mitotoxic pyrolysis

innate immune activation

metabolic starvation

mitochondrial oxidative stress

lipid peroxidation

cancer therapy

April 19, 2026 9:17 AM - 9:37 AM

Ballroom

Major Symposium H: Resolution of Inflammation

Yaqiu Wang

Cellular Adhesion, Migration, and Inflammation (CAM)

2026