ArticleScience advances2025
The tumor suppressor LACTB remodels mitochondria to promote cytochrome c release and apoptosis.
Article in Science advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed.
- Mechanotransduction Failure and Molecular Rescue in Gastric Cancer: Kinetotherapy Across the IL-6/STAT3-Myostatin/ACVR2B-Akt/mTOR Axis.Medical sciences (Basel, Switzerland) · 2026Review
- Self-Assembly of Stimuli-Responsive Peptide Enhances Therapeutics by Specifically Disrupting Hepatocellular Carcinoma Lysosomes In Vivo.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- A robust workflow for 3D imaging of human mitochondria using cryo-electron tomography.bioRxiv : the preprint server for biology · 2026Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Mitochondria are pivotal regulators of cellular homeostasis, integrating energy metabolism, biosynthesis, and programmed cell death (apoptosis). During apoptosis, mitochondrial outer membrane permeabilization by BCL-2-associated X protein/BCL-2 Homolog Antagonist Killer (BAX/BAK) pores facilitates release of apoptotic factors, while the role of inner mitochondrial membrane (IMM) remodeling remains less understood. Here, we identify serine beta-lactamase-like protein (LACTB), a filament-forming serine protease and tumor suppressor, as a regulator of IMM dynamics during apoptosis. LACTB suppression reduces cytochrome c release and apoptosis, whereas its overexpression promotes these effects. LACTB does not affect BAX or Drp1 recruitment to mitochondria. Rather, LACTB is required for apoptosis-induced mitochondrial remodeling, independent of OPA1 processing. Intriguingly, LACTB knockdown does not affect mitochondrial shape changes induced by CCCP treatment, suggesting that LACTB action is apoptosis-specific. Purified LACTB binds and remodels cardiolipin-enriched membrane nanotubes preferentially over planar lipid membranes, suggesting a direct effect in apoptotic membrane remodeling. Collectively, our findings suggest LACTB to be a mediator of apoptosis-induced IMM remodeling, a possible mechanism for tumor suppression in cancer.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.