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| Open AccessAn osteoinductive and biodegradable intramedullary implant accelerates bone healing and mitigates complications of bone transport in male rats
Current limb salvage techniques for the treatment of the osteopathic non-unions still have several drawbacks that may prolong the duration of treatment. Here, Lin et al., propose using an osteoinductive (BMP-2 eluting) intramedullary and biodegradable implant to achieve early bony bridging and show that pin tract infection or docking site non-union can be avoided in experimental animal models of large bone defects.
- Sien Lin
- , Hirotsugu Maekawa
- & Yunzhi Peter Yang
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Article
| Open AccessA natural biological adhesive from snail mucus for wound repair
Natural adhesives have received a lot of attention recently. Here, the authors develop a natural biological adhesive from snail mucus that can adhere to wet tissue and be used to accelerate healing of skin wounds.
- Tuo Deng
- , Dongxiu Gao
- & Mingyi Wu
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Article
| Open AccessLipidomic signatures align with inflammatory patterns and outcomes in critical illness
Alterations in lipid metabolism and circulating lipid species have been reported in patients with acute critical illness. Here the authors show that selective rise in systemic phosphatidylethanolamine levels is a common feature of critical illness that associates with worse clinical outcomes.
- Junru Wu
- , Anthony Cyr
- & Mieshia Beamon
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| Open AccessTargeting local lymphatics to ameliorate heterotopic ossification via FGFR3-BMPR1a pathway
Different types of mesenchymal progenitors participate in ectopic bone formation. Here, the authors show Col2+ lineage cells adopt a lymphatic endothelium cell fate, which regulates local inflammatory microenvironment after trauma, thus influencing heterotopic ossification (HO) development via a FGFR3-BMPR1a pathway.
- Dali Zhang
- , Junlan Huang
- & Yangli Xie
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Article
| Open AccessPreferential inhibition of adaptive immune system dynamics by glucocorticoids in patients after acute surgical trauma
Glucocorticoids (GC) are commonly used to suppress undesirable inflammatory responses. Here the authors show, using hi-dimensional flow cytometry data, that GC treatment following major surgeries alters adaptive immunity without significant modulation of innate immune responses or pain/functional impairment.
- Edward A. Ganio
- , Natalie Stanley
- & Brice Gaudilliere
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| Open AccessA RUNX2 stabilization pathway mediates physiologic and pathologic bone formation
Runx2 is essential for tuning the generation of bone from skeletal stem cells (SSCs). Here, the authors demonstrate that the CK2/HAUSP pathway stabilizes RUNX2 protein thereby regulating the commitment of SSCs to osteoprogenitors as well as their subsequent maturation, and that inhibition of this pathway can block heterotopic ossification.
- Jung-Min Kim
- , Yeon-Suk Yang
- & Jae-Hyuck Shim
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Article
| Open AccessCordycepin prevents radiation ulcer by inhibiting cell senescence via NRF2 and AMPK in rodents
Radiation damage causes DNA foci to form and senescence, causing ulcers. Here, the authors show that a naturally occurring adenosine analogue, cordycepin, prevents cell senescence via an increase in AMPK/NRF2, so blocking ulcers caused by radiation on skin/intestine/tongue damage in rodents.
- Ziwen Wang
- , Zelin Chen
- & Chunmeng Shi
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| Open AccessPreclinical safety study of a combined therapeutic bone wound dressing for osteoarticular regeneration
Arthroplasty is the main clinical option for the treatment of osteoarticular lesions, but has limited efficacy. Here, the authors use a wound dressing with autologous mesenchymal stromal cells, functionalised for local BMP2 delivery, and show feasibility and safety in standardised preclinical tests in animal models, suggesting suitability for use in clinical trials.
- Laetitia Keller
- , Luc Pijnenburg
- & Nadia Benkirane-Jessel
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Article
| Open AccessA strongly adhesive hemostatic hydrogel for the repair of arterial and heart bleeds
Uncontrollable bleeding is a major problem in surgery and after trauma. Here the authors design a photo-reactive adhesive that mimics the composition of connective tissue and is able to stop high pressure bleeding within half a minute.
- Yi Hong
- , Feifei Zhou
- & Hongwei Ouyang
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Article
| Open AccessA tightly-bonded and flexible mesoporous zeolite-cotton hybrid hemostat
Zeolites have attracted attention and have been applied as haemostatic agents; however, there are issues associated with released zeolite powder. Here, the authors report on the growth of zeolites on cotton fibres with high stability and haemostatic ability.
- Lisha Yu
- , Xiaoqiang Shang
- & Jie Fan
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Article
| Open AccessRNA inhibitors of nuclear proteins responsible for multiple organ dysfunction syndrome
Multiple organ dysfunction syndrome (MODS) is a serious event that can occur following infection or tissue injury, and is partly mediated by histones released in circulation. Here, the authors develop aptamers that neutralise histones involved in MODS, and demonstrate efficacy in human cells and in mouse models.
- Kevin T. Urak
- , Giselle N. Blanco
- & Paloma H. Giangrande
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Article
| Open AccessGenome-wide DNA methylation levels and altered cortisol stress reactivity following childhood trauma in humans
Exposure to childhood trauma is a major risk factor for the development of almost all psychiatric disorders. By epigenome-wide studies, here, Houtepen et al. show that DNA methylation at a locus in the Kit ligand gene (KITLG) mediates the relationship between childhood trauma and cortisol stress reactivity.
- Lotte C. Houtepen
- , Christiaan H. Vinkers
- & Marco P. M. Boks