scholarly journals Novel Majeed syndrome causing LPIN2 mutations link bone inflammation to inflammatory M2 macrophages and accelerated osteoclastogenesis

2020 ◽  
Author(s):  
Farzana Bhuyan ◽  
Adriana A. Jesus ◽  
Jacob Mitchell ◽  
Evgenia Leikina ◽  
Rachel VanTries ◽  
...  
Keyword(s):  
M2 Macrophages ◽  
Bone Inflammation

M2 Macrophages but not M1 Macrophages Are Associated with Worst Outcome in Classical Hodgkin Lymphoma

2014 ◽  
Vol 226 (02) ◽  
Author(s):  
M Barros ◽  
P Segges ◽  
G Vera-Lozada ◽  
R Hassan ◽  
G Niedobitek
Keyword(s):  
Hodgkin Lymphoma ◽  
M2 Macrophages ◽  
Classical Hodgkin Lymphoma ◽  
M1 Macrophages

High glucose induces donors-specific cytokine response in primary human M1 and M2 macrophages

2015 ◽  
Vol 10 (S 01) ◽  
Author(s):  
K Moganti ◽  
F Li ◽  
S Riehman ◽  
H Klüter ◽  
M Harmsen ◽  
...  
Keyword(s):  
High Glucose ◽  
Cytokine Response ◽  
M2 Macrophages ◽  
M1 And M2 Macrophages

Decisive Diagnosis of Infected Mandibular Osteoradionecrosis with a Tc-99m-labelled Anti-granulocyte Fab′-fragment

1999 ◽  
Vol 38 (07) ◽  
pp. 309-311 ◽  
Author(s):  
W. Brenner ◽  
H. Terheyden ◽  
K. H. Bohuslavizki ◽  
E. Henze ◽  
W. U. Kampen
Keyword(s):  
Blood Pool ◽  
Bone Scanning ◽  
Acute Osteomyelitis ◽  
Elevated Blood ◽  
Fab Fragment ◽  
Postoperative Changes ◽  
Three Phase ◽  
Golden Standard ◽  
Blood Pool Activity ◽  
Bone Inflammation

SummaryThe accepted golden standard for detection of inflammatory bone disease is conventional three-phase bone scanning. Hyperperfusion, a high blood-pool activity and elevated bone metabolism are typical signs for an acute osteomyelitis. However, in case of subacute, chronic inflammation, neither elevated blood flow nor high blood-pool activity may be seen. This may cause difficulties in differentiating such cases from neoplastic or postoperative changes. This case report verifies the possible advantage of immunoscintigraphy with Tc-99m-labelled antigranulocyte Fab′-fragments (LeukoScan®) in a patient with infected mandibular osteoradionecrosis, who had equivocal clinical symptomes and questionable radiographic results. LeukoScan® is shown to be more sensitive in case of subacute bone inflammation compared with three-phase bone scanning. However, acquisition of delayed images after 24 hours including SPECT is inevitable in case of negative scans during the first hours of investigation.

Reparação óssea no implante dental

2020 ◽  
Vol 12 (45) ◽  
pp. 63-66
Author(s):  
Halim Nagem Filho ◽  
Reinaldo Francisco Maia ◽  
Reinaldo Missaka ◽  
Nasser Hussein Fares
Keyword(s):  
Gene Expression ◽  
Titanium Surface ◽  
Close Contact ◽  
The Other ◽  
Main Function ◽  
Indirect Interaction ◽  
M2 Macrophages ◽  
Activated Macrophages ◽  
M1 Macrophages ◽  
High Production

The osseointegration is the stable and functional union between the bone and a titanium surface. A new bone can be found on the surface of the implant about 1 week after its installation; the bone remodeling begins between 6 and 12 weeks and continues throughout life. After the implant insertion, depending on the energy of the surface, the plasma fluid immediately adheres, in close contact with the surface, promoting the adsorption of proteins and inducing the indirect interaction of the cells with the material. Macrophages are cells found in the tissues and originated from bone marrow monocytes. The M1 macrophages orchestrate the phagocytic phase in the inflammatory region and also produce inflammatory cytokines involved with the chronic inflammation and the cleaning of the wound and damaged tissues from bacteria. On the other hand, alternative-activated macrophages (M2) are activated by IL-10, the immune complex. Its main function consists on regulating negatively the inflammation through the secretion of the immunosuppressant IL-10. The M2 macrophages present involvement with the immunosuppression, besides having a low capacity for presenting antigens and high production of cytokines; these can be further divided into M2a, M2b, and M2c, based on the gene expression profile.

Polarization of M2 Macrophages to Promote Tumor Immune Escape via Il-10 in SCLC but Not NSCLC Patients

2019 ◽  
Author(s):  
Xintong Hu ◽  
Yue Gu ◽  
Songchen Zhao ◽  
Shucheng Hua ◽  
Yanfang Jiang
Keyword(s):  
Immune Escape ◽  
M2 Macrophages ◽  
Tumor Immune Escape ◽  
Nsclc Patients

Immunosuppressive Functions of M2 Macrophages Derived from iPSCs of ALS Patients

2020 ◽  
Author(s):  
Weihua Zhao ◽  
David R. Beers ◽  
Jason R. Thonhoff ◽  
Aaron D. Thome ◽  
Alireza Faridar ◽  
...  
Keyword(s):  
M2 Macrophages ◽  
Als Patients

scholarly journals VitA or VitD ameliorates bronchopulmonary dysplasia by regulating the balance between M1 and M2 macrophages

2021 ◽  
Vol 141 ◽  
pp. 111836
Author(s):  
Hong Zhen ◽  
Hongbo Hu ◽  
Guojie Rong ◽  
Xiuxiu Huang ◽  
Chang Tan ◽  
...  
Keyword(s):  
Bronchopulmonary Dysplasia ◽  
M2 Macrophages ◽  
M1 And M2 Macrophages

Artificial M2 Macrophages for Disease-Modifying Osteoarthritis Therapeutics

Biomaterials ◽  
2021 ◽  
pp. 120865
Author(s):  
Yandong Ma ◽  
Haiyuan Yang ◽  
Xiaoqing Zong ◽  
Jinpei Wu ◽  
Xin Ji ◽  
...  
Keyword(s):  
M2 Macrophages ◽  
Disease Modifying

The Enhancement Effect of Acetylcholine and Pyridostigmine on Bone-Tendon Interface Healing in a Murine Rotator Cuff Model

2021 ◽  
pp. 036354652098868
Author(s):  
Zhanwen Wang ◽  
Yang Chen ◽  
Han Xiao ◽  
Shengcan Li ◽  
Tao Zhang ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Repair ◽  
Early Stage ◽  
Drug Carrier ◽  
Acetylcholinesterase Inhibitor ◽  
Healing Process ◽  
Enhancement Effect ◽  
M2 Macrophages ◽  
Fibrin Gel ◽  
Cuff Repair

Background: How to improve rotator cuff healing remains a challenge. Little is known about the effect of the parasympathetic transmitter acetylcholine (ACh) and the acetylcholinesterase inhibitor pyridostigmine (PYR), both of which have anti-inflammatory properties, in the healing process of rotator cuff injury. Hypothesis: ACh and PYR could enhance bone-tendon interface healing in a murine model of rotator cuff repair. Study Design: Controlled laboratory study. Methods: A total of 160 C57BL/6 mice underwent unilateral rotator cuff repair surgery. Fibrin gel (FG) was used as a drug carrier. The mice were randomly assigned to 4 groups with 40 mice per group: FG group (received FG alone), 10-5 M ACh group (received FG containing 10-5 M ACh), 10-6 M ACh group (received FG containing 10-6 M ACh), and PYR group (received FG containing 25 µg of PYR). Ten mice in each group were euthanized at 2, 4, 8, and 12 weeks postoperatively. Histologic, immunohistochemical, and biomechanical evaluations were performed for analysis. Results: Histologically, fibrocartilage-like tissue was shown at the repaired site. The proteoglycan content of the 10-5 M ACh group was significantly increased compared with the FG group at 4 weeks. M2 macrophages were identified at the repaired site for all groups at 2 and 4 weeks. At 8 weeks, M2 macrophages withdrew back to the tendon in the FG group, but a number of M2 macrophages were retained at the repaired sites in the ACh and PYR groups. Biomechanically, failure load and stiffness of the ACh and PYR groups were significantly higher than those of the FG group at 4 weeks. The stiffness of the ACh and PYR groups was significantly increased compared with the FG group at 8 weeks ( P < .001 for all). At 12 weeks, most of the healing properties of the ACh and PYR groups were not significantly different compared with the FG group. Conclusion: ACh and PYR enhanced the early stage of bone-tendon insertion healing after rotator cuff repair. Clinical Relevance: These findings imply that ACh and PYR could serve as potential therapeutic strategies for rotator cuff healing.

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