scholarly journals Cytosolic Delivery of Thiolated Mn‐cGAMP Nanovaccine to Enhance the Antitumor Immune Responses

Small ◽  
2021 ◽  
Vol 17 (19) ◽  
pp. 2102241
Author(s):  
Chengyun Chen ◽  
Yuhong Tong ◽  
Youshi Zheng ◽  
Yingjun Shi ◽  
Zhaowei Chen ◽  
...  
Small ◽  
2021 ◽  
pp. 2006970
Author(s):  
Chengyun Chen ◽  
Yuhong Tong ◽  
Youshi Zheng ◽  
Yingjun Shi ◽  
Zhaowei Chen ◽  
...  

2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Xiangyu Wang ◽  
Zhaozheng Li ◽  
Yang Bai ◽  
Rui Zhang ◽  
Ran Meng ◽  
...  

AbstractCaspase-11, a cytosolic lipopolysaccharide (LPS) receptor, mediates lethal immune responses and coagulopathy in sepsis, a leading cause of death worldwide with limited therapeutic options. We previously showed that over-activation of caspase-11 is driven by hepatocyte-released high mobility group box 1 (HMGB1), which delivers extracellular LPS into the cytosol of host cells during sepsis. Using a phenotypic screening strategy with recombinant HMGB1 and peritoneal macrophages, we discovered that FeTPPS, a small molecule selectively inhibits HMGB1-mediated caspase-11 activation. The physical interaction between FeTPPS and HMGB1 disrupts the HMGB1-LPS binding and decreases the capacity of HMGB1 to induce lysosomal rupture, leading to the diminished cytosolic delivery of LPS. Treatment of FeTPPS significantly attenuates HMGB1- and caspase-11-mediated immune responses, organ damage, and lethality in endotoxemia and bacterial sepsis. These findings shed light on the development of HMGB1-targeting therapeutics for lethal immune disorders and might open a new avenue to treat sepsis.


1997 ◽  
Vol 27 (11) ◽  
pp. 1285-1291 ◽  
Author(s):  
M. N. KOLOPP-SARDA ◽  
D. A. MONERET-VAUTRIN ◽  
B. GOBERT ◽  
G. KANNY ◽  
M. BRODSCHII ◽  
...  

Author(s):  
Jorge Domínguez-Andrés ◽  
Anaísa V Ferreira ◽  
Trees Jansen ◽  
Nicholas Smithers ◽  
Rab K. Prinjha ◽  
...  

2015 ◽  
Vol 29 (3) ◽  
pp. 119-129 ◽  
Author(s):  
Richard J. Stevenson ◽  
Deborah Hodgson ◽  
Megan J. Oaten ◽  
Luba Sominsky ◽  
Mehmet Mahmut ◽  
...  

Abstract. Both disgust and disease-related images appear able to induce an innate immune response but it is unclear whether these effects are independent or rely upon a common shared factor (e.g., disgust or disease-related cognitions). In this study we directly compared these two inductions using specifically generated sets of images. One set was disease-related but evoked little disgust, while the other set was disgust evoking but with less disease-relatedness. These two image sets were then compared to a third set, a negative control condition. Using a wholly within-subject design, participants viewed one image set per week, and provided saliva samples, before and after each viewing occasion, which were later analyzed for innate immune markers. We found that both the disease related and disgust images, relative to the negative control images, were not able to generate an innate immune response. However, secondary analyses revealed innate immune responses in participants with greater propensity to feel disgust following exposure to disease-related and disgusting images. These findings suggest that disgust images relatively free of disease-related themes, and disease-related images relatively free of disgust may be suboptimal cues for generating an innate immune response. Not only may this explain why disgust propensity mediates these effects, it may also imply a common pathway.


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