Tardigrades are microscopic organisms known for their remarkable resilience to extreme environmental conditions, including radiation and desiccation. Two key proteins, Dsup (Damage suppressor protein) and CAHS D (Cytoplasmic Abundant Heat Soluble protein D), play crucial roles in this resilience. Dsup protects DNA from radiation-induced damage, while CAHS D stabilizes cellular structures during desiccation by interacting with, but not retaining, water. These unique mechanisms have significant potential applications in neurosurgery and neuroscience. Dsup could inspire the development of protective agents for neural tissues during radiation-based treatments, minimizing collateral damage and improving patient outcomes. Meanwhile, CAHS D's stabilization properties could lead to new neuroprotective strategies, safeguarding brain cells under stress. Together, these tardigrade proteins offer innovative solutions for enhancing neural protection, opening new avenues for treating neurological conditions and improving the safety and efficacy of neurosurgical procedures.
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http://dx.doi.org/10.1007/s10143-024-02901-3 | DOI Listing |
Open Biol
March 2025
Department of Zoology, University of Kassel, Kassel, Germany.
Pigment-dispersing factors (PDFs) are neuropeptides that play key roles in controlling the circadian rhythms in various insects, whereas their function remains elusive in other protostomes including tardigrades (water bears). Here we show that the three PDFs of the tardigrade are co-localized in two pairs of inner lobe cells in the brain, whereas only one PDF occurs in four additional cerebral and two extracerebral cells. The axons of the inner lobe cells pass through the contralateral brain hemisphere, descend to the ventral nerve cord and terminate in two pairs of potential release sites in the posteriormost trunk ganglion.
View Article and Find Full Text PDFNat Biomed Eng
February 2025
Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Patients undergoing radiation therapy experience debilitating side effects because of toxicity arising from radiation-induced DNA strand breaks in normal peritumoural cells. Here, inspired by the ability of tardigrades to resist extreme radiation through the expression of a damage-suppressor protein that binds to DNA and reduces strand breaks, we show that the local and transient expression of the protein can reduce radiation-induced DNA damage in oral and rectal epithelial tissues (which are commonly affected during radiotherapy for head-and-neck and prostate cancers, respectively). We used ionizable lipid nanoparticles supplemented with biodegradable cationic polymers to enhance the transfection efficiency and delivery of messenger RNA encoding the damage-suppressor protein into buccal and rectal tissues.
View Article and Find Full Text PDFProtein Sci
March 2025
Department of Molecular Biology, University of Wyoming, Laramie, Wyoming, USA.
Protein Sci
March 2025
Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea.
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