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Commentary: Why do many cell biology papers contain fundamental bioenergetic errors?
Biochim Biophys Acta Bioenerg
January 2025
Buck Institute for Research on Aging, Novato, CA, United States of America. Electronic address:
To professional bioenergeticists, the thermodynamic and kinetic constraints on mitochondrial function are self-evident. It is therefore profoundly concerning that high-profile cell biology papers continue to appear containing fundamental bioenergetic errors that appear to have evaded the scrutiny of the principal investigator, co-authors, editors and, apparently, at least some of the referees. The problem is not new, and seems to stem from a perception that bioenergetics is a 'difficult' subject, both at undergraduate level, if it is taught in any depth, and in research, where cell biologists are faced with biophysical concepts such as protonmotive force, ion flux, redox potential and Gibbs free energy.
View Article and Find Full Text PDFWhat causes cardiac mitochondrial failure at high environmental temperatures?
J Exp Biol
October 2024
School of Biological Sciences, Thomas Building, University of Auckland, 3a Symonds St, Auckland 1010, New Zealand.
Article Synopsis
- Mitochondria play a crucial role in producing ATP necessary for cellular function, particularly in crucial tissues like the heart and brain, and their dysfunction at high temperatures is linked to hyperthermic death.
- As temperatures rise, the efficiency and capacity for ATP synthesis in cardiac and brain mitochondria decline, leading to insufficient ATP for cellular needs and potential organ failure.
- This commentary explores potential causes of mitochondrial failure during hyperthermia, including increased leak respiration and structural changes in the inner mitochondrial membrane that could disrupt proton transport and reduce ATP production.
Coming in out of the cold: Rho-dependent termination contributes to adaptation to cold shock.
Mol Cell
September 2024
Laboratory of Molecular Biology, Center for Cancer Research, NCI, Bethesda, MD 20892, USA. Electronic address:
During cold shock, bacteria shut down translation of all but a set of cold-shock proteins critical for recovery; in this issue of Molecular Cell, Delaleau et al. show that Rho-dependent transcription termination plays an important role in cold adaptation, via temperature-regulated termination of the cold-shock protein mRNAs.
View Article and Find Full Text PDFHigh temperatures increase the virulence of Vibrio bacteria towards their coral host and competing bacteria via type VI secretion systems.
PLoS Biol
September 2024
Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China.
The bacterial pathogen Vibrio coralliilyticus induces severe coral diseases in warming oceans. A study in PLOS Biology reveals that high temperatures activate 2 type VI secretion systems in V. coralliilyticus, enhancing pathogenicity by deploying toxic effectors against competing bacteria and coral cells.
View Article and Find Full Text PDFDNA and gelatin-a cool aerogel mix.
Science
July 2024
State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou 450002, People's Republic of China.
A degradable biopolymer is an effective radiative cooling material.
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