Mast Cells Are Critical Regulators of Bone Fracture-Induced Inflammation and Osteoclast Formation and Activity.
AuthorsKroner J, Kovtun A, Kemmler J, Messmann JJ, Strauss G, Seitz S, Schinke T, Amling M, Kotrba J, Froebel J, Dudeck J, Dudeck A, Ignatius A
JournalJ Bone Miner Res
PubMed ID28777474
'Mast cells, important sensor and effector cells of the immune system, may influence bone metabolism as their number is increased in osteoporotic patients. They are also present during bone fracture healing with currently unknown functions. Using a novel c-Kit-independent mouse model of mast cell deficiency, we demonstrated that mast cells ... More
Dual Inhibition of PI3K/Akt and mTOR by the Dietary Antioxidant, Delphinidin, Ameliorates Psoriatic Features In Vitro and in an Imiquimod-Induced Psoriasis-Like Disease in Mice.
AuthorsChamcheu JC, Adhami VM, Esnault S, Sechi M, Siddiqui IA, Satyshur KA, Syed DN, Dodwad SM, Chaves-Rodriquez MI, Longley BJ, Wood GS, Mukhtar H
JournalAntioxid Redox Signal
PubMed ID27393705
'The treatment of psoriasis remains elusive, underscoring the need for identifying novel disease targets and mechanism-based therapeutic approaches. We recently reported that the PI3K/Akt/mTOR pathway that is frequently deregulated in many malignancies is also clinically relevant for psoriasis. We also provided rationale for developing delphinidin (Del), a dietary antioxidant for ... More
Warm ischemia time-dependent variation in liver damage, inflammation, and function in hepatic ischemia/reperfusion injury.
AuthorsOlthof PB, van Golen RF, Meijer B, van Beek AA, Bennink RJ, Verheij J, van Gulik TM, Heger M
JournalBiochim Biophys Acta Mol Basis Dis
PubMed ID27989959
Hepatic ischemia/reperfusion (I/R) injury is characterized by hepatocellular damage, sterile inflammation, and compromised postoperative liver function. Generally used mouse I/R models are too severe and poorly reflect the clinical injury profile. The aim was to establish a mouse I/R model with better translatability using hepatocellular injury, liver function, and innate ... More
Alteration of Gut Microbiota and Inflammatory Cytokine/Chemokine Profiles in 5-Fluorouracil Induced Intestinal Mucositis.
AuthorsLi HL, Lu L, Wang XS, Qin LY, Wang P, Qiu SP, Wu H, Huang F, Zhang BB, Shi HL, Wu XJ
JournalFront Cell Infect Microbiol
PubMed ID29124041
Disturbed homeostasis of gut microbiota has been suggested to be closely associated with 5-fluorouracil (5-Fu) induced mucositis. However, current knowledge of the overall profiles of 5-Fu-disturbed gut microbiota is limited, and so far there is no direct convincing evidence proving the causality between 5-Fu-disturbed microbiota and colonic mucositis. In mice, ... More
Lack of IL-17 Receptor A signaling aggravates lymphoproliferation in C57BL/6 lpr mice.
Defects in Fas function correlate with susceptibility to systemic autoimmune diseases like autoimmune lymphoproliferative syndrome (ALPS) and systemic lupus erythematosus (SLE). C57BL/6 lpr (B6/lpr) mice are used as an animal model of ALPS and develop a mild SLE phenotype. Involvement of interleukin-17A (IL-17A) has been suggested in both phenotypes. Since ... More
The damage-associated molecular pattern HMGB1 is released early after clinical hepatic ischemia/reperfusion.
Authorsvan Golen RF, Reiniers MJ, Marsman G, Alles LK, van Rooyen DM, Petri B, Van der Mark VA, van Beek AA, Meijer B, Maas MA, Zeerleder S, Verheij J, Farrell GC, Luken BM, Teoh NC, van Gulik TM, Murphy MP, Heger M
JournalBiochim Biophys Acta Mol Basis Dis
PubMed ID30658161
Activation of sterile inflammation after hepatic ischemia/reperfusion (I/R) culminates in liver injury. The route to liver damage starts with mitochondrial oxidative stress and cell death during early reperfusion. The link between mitochondrial oxidative stress, damage-associate molecular pattern (DAMP) release, and sterile immune signaling is incompletely understood and lacks clinical validation. ... More