keyword
MENU ▼
Read by QxMD icon Read
search

Mac-1

keyword
https://www.readbyqxmd.com/read/29738851/intranasally-delivered-small-interfering-rna-mediated-suppression-of-scavenger-receptor-mac-1-attenuates-microglial-phenotype-switching-and-working-memory-impairment-following-hypoxia
#1
Sudeshna Das, K P Mishra, Lilly Ganju, S B Singh
Brain, being the highest consumer of oxygen, is prone to increased risk of hypoxia-induced neurological insults. In response to hypoxia, microglia, the major resident immune cells of brain switches to an activated phenotype and promote inflammatory responses leading to tissue damage and loss of cognitive functions including working memory impairment. Till date, no proven clinical therapeutics is available to retard the progression of neurodegenerative memory impairment. In the present study, we investigated the therapeutic potential of intranasal small interfering RNA (siRNA) delivery in a mouse model of hypoxia-induced working memory impairment using microglial receptor, Mac-1 as a target gene...
May 5, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29712775/the-itim-domain-containing-nk-receptor-ly49q-impacts-pulmonary-infection-by-mediating-neutrophil-functions
#2
Andreas Margraf, Stephanie Volmering, Jennifer Skupski, Veerle Van Marck, Andrew P Makrigiannis, Helena Block, Alexander Zarbock
Pulmonary infection is a frequent pathology associated with excessive neutrophil infiltration. Ly49Q, an ITIM domain-bearing receptor expressed on different leukocytes, has been recently reported to impact neutrophil migration and polarization. Utilizing a murine model of Klebsiella pneumoniae- induced pulmonary infection in combination with additional in vivo and in vitro assays, we show that Ly49Q is critically involved in different steps of the leukocyte adhesion cascade. Ly49Q deficiency is associated with a reduced rolling velocity, impaired crawling capacity, and diminished transmigration...
April 30, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29678518/pattern-recognition-receptors-mediate-pro-inflammatory-effects-of-extracellular-mitochondrial-transcription-factor-a-tfam
#3
Stephanie M Schindler, Matthew G Frank, Jessica L Annis, Steven F Maier, Andis Klegeris
Neuroinflammation is a common pathogenic mechanism for a number of neurodegenerative disorders including Alzheimer's and Parkinson's diseases. Microglia, the immune cells of the brain, contribute to the onset and progression of the neuroinflammation observed in these diseases. Microglia become activated and initiate an inflammatory response by interacting with a diverse set of molecules, including the group of endogenous proteins released upon cell damage, termed damage-associated molecular patterns (DAMPs)...
April 17, 2018: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29629058/effect-of-propofol-and-isoflurane-on-gas-exchange-parameters-following-one-lung-ventilation-in-thoracic-surgery-a-double-blinded-randomized-controlled-clinical-trial
#4
Shima Sheybani, Alireza Sharifian Attar, Sogol Golshan, Shadi Sheibani, Majid Rajabian
Background: The use of anesthetic drugs with minimal inhibitory effects on the hypoxic pulmonary vasoconstriction (HPV) could have a decisive role in preventing the hypoxemia during one-lung ventilation (OLV). Objective: The aim of this study was to compare the effects of propofol and isoflurane on the changes in gas exchange parameters following OLV in thoracic surgery. Methods: This double-blinded randomized controlled clinical trial was conducted on patients who were candidates for elective right thoracotomy referred to the central operating room of Ghaem Hospital in Mashhad, Iran, during February 2016-2017...
February 2018: Electronic Physician
https://www.readbyqxmd.com/read/29600248/cd11b-activity-modulates-pathogenesis-of-lupus-nephritis
#5
REVIEW
Samia Q Khan, Imran Khan, Vineet Gupta
Lupus nephritis (LN) is a common complication of systemic lupus erythematosus (SLE) with unclear etiology and limited treatment options. Immune cell infiltration into the kidneys, a hallmark of LN, triggers tissue damage and proteinuria. CD11b, the α-chain of integrin receptor CD11b/CD18 (also known as αMβ2 , Mac-1, and CR3), is highly expressed on the surface of innate immune cells, including macrophages and neutrophils. Genetic variants in the human ITGAM gene, which encodes for CD11b, are strongly associated with susceptibility to SLE, LN, and other complications of SLE...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29568527/leukadherin-1-ameliorates-endothelial-barrier-damage-mediated-by-neutrophils-from-critically-ill-patients
#6
Catherine M Dickinson, Brian W LeBlanc, Muhammad M Edhi, Daithi S Heffernan, Mohd Hafeez Faridi, Vineet Gupta, William G Cioffi, Xian O'Brien, Jonathan S Reichner
Background: Multi-organ failure occurs during critical illness and is mediated in part by destructive neutrophil-to-endothelial interactions. The β2 integrin receptor, CR3 (complement receptor 3; Mac-1; CD11b/CD18), which binds endothelial intercellular adhesion molecule-1 (ICAM-1), plays a key role in promoting the adhesion of activated neutrophils to inflamed endothelia which, when prolonged and excessive, can cause vascular damage. Leukadherin-1 (LA-1) is a small molecule allosteric activator of CR3 and has been shown to promote adhesion of blood neutrophils to inflamed endothelium and restrict tissue infiltration...
2018: Journal of Intensive Care
https://www.readbyqxmd.com/read/29565474/implantation-of-adipose-derived-stem-cells-cures-the-optic-nerve-injury-on-rats-through-inhibiting-the-expression-of-inflammation-factors-in-the-tlr4-signaling-pathway
#7
L-J Wang, L-P Liu, X L Gu, M Wang, L-M Liu
OBJECTIVE: The use of adipose-derived stem cells (ADSCs) to cure the optic nerve injury was never shown previously. Here, we implanted purified ADSCs into optic nerve injury of rats. MATERIALS AND METHODS: Male Sprague Dawley (SD) rats were used in this study. The vision degeneration was detected by Flash-visual evoked potential (F-VEP) assay. The expression of Macrophage-1 (Mac-1), myeloid differentiation factor 88 (MyD88), and nuclear transcription factor-κB (NF-κB) were studied by Western blot...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29544096/the-%C3%AE-2-integrin-mac-1-induces-protective-lc3-associated-phagocytosis-of-listeria-monocytogenes
#8
Alexander Gluschko, Marc Herb, Katja Wiegmann, Oleg Krut, Wolfram F Neiss, Olaf Utermöhlen, Martin Krönke, Michael Schramm
The intracellular pathogen Listeria monocytogenes (L.m.) is targeted by the autophagic machinery, but the molecular mechanisms involved and consequences for anti-listerial immunity remain enigmatic. Here, we demonstrate that L.m. infection of macrophages in vivo exclusively evokes LC3-associated phagocytosis (LAP), but not canonical autophagy, and that targeting of L.m. by LAP is required for anti-listerial immunity. The pathway leading to LAP induction in response to L.m. infection emanates from the β2 integrin Mac-1 (CR3, integrin αM β2 ), a receptor recognizing diverse microbial ligands...
March 14, 2018: Cell Host & Microbe
https://www.readbyqxmd.com/read/29540475/leukocyte-integrin-mac-1-cd11b-cd18-%C3%AE-m-%C3%AE-2-cr3-acts-as-a-functional-receptor-for-platelet-factor-4
#9
Valeryi K Lishko, Valentin P Yakubenko, Tatiana P Ugarova, Nataly P Podolnikova
Platelet Factor 4 (PF4) is one of the most abundant cationic proteins secreted from α-granules of activated platelets. Based on its structure, PF4 was assigned to the CXC family of chemokines and has been shown to have numerous effects on myeloid leukocytes. However, the receptor for PF4 remains unknown. Here, we demonstrate that PF4 induces leukocyte responses through the integrin Mac-1 (αM β2 , CD11b/CD18). Human neutrophils, monocytes, U937 monocytic and HEK293 cells expressing Mac-1 strongly adhered to immobilized PF4 in a concentration-dependent manner...
March 14, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29512159/anti-inflammatory-effect-of-diterpenes-enriched-fractions-from-pterodon-polygalaeflorus-through-inhibition-of-macrophage-migration-and-cytokine-production
#10
Nathalia Regina F Leal, Mariana Vieira Vigliano, Fabiana A Pinto, Thayane V de Sousa, Leosvaldo S M Velozo, Kátia C C Sabino, Maria da Graça Justo, Marsen Garcia Pinto Coelho
OBJECTIVES: To evaluate the anti-inflammatory potential of Pterodon polygalaeflorus hexane extract (HE) and its fractions on macrophage migration in vitro and in vivo. METHODS: Hexane extract from P. polygalaeflorus fruits was fractionated and yielded four fractions. RAW 264.7 cells were treated with samples to evaluate cell viability (MTT assay), cell migration (wound healing and transwell assays), CD14 expression (flow cytometry), iNOS and cytokine mRNA expression (RT-qPCR), NO (Griess reaction) and cytokine (ELISA) production...
June 2018: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29474146/influence-of-cooling-rate-on-growth-of-bacillus-cereus-from-spore-inocula-in-cooked-rice-beans-pasta-and-combination-products-containing-meat-or-poultry
#11
Vijay K Juneja, Tim B Mohr, Meryl Silverman, O Peter Snyder
The objective of this study was to assess the ability of Bacillus cereus spores to germinate and grow in order to determine a safe cooling rate for cooked rice, beans, and pasta, rice-chicken (4:1), rice-chicken-vegetables (3:1:1), rice-beef (4:1), and rice-beef-vegetables (3:1:1). Samples were inoculated with a cocktail of four strains of heat-shocked (80°C for 10 min) B. cereus spores (NCTC 11143, 935A/74, Brad 1, and Mac 1) to obtain a final spore concentration of approximately 2 log CFU/g. Thereafter, samples were exponentially cooled through the temperature range of 54...
February 23, 2018: Journal of Food Protection
https://www.readbyqxmd.com/read/29467183/the-search-for-new-antithrombotic-mechanisms-and-therapies-that-may-spare-hemostasis
#12
REVIEW
Edward F Plow, Yunmei Wang, Daniel I Simon
Current antithrombotic drugs, including widely used antiplatelet agents and anticoagulants, are associated with significant bleeding risk. Emerging experimental evidence suggests that the molecular and cellular mechanisms of hemostasis and thrombosis can be separated, thereby increasing the possibility of new antithrombotic therapeutic targets with reduced bleeding risk. We review new coagulation and platelet targets and highlight the interaction between integrin αM β2 (Mac-1, CD11b/CD18) on leukocytes and GPIbα on platelets that seems to distinguish thrombosis from hemostasis...
April 26, 2018: Blood
https://www.readbyqxmd.com/read/29434584/tlr3-ligand-poly-i-c-exerts-distinct-actions-in-synovial-fibroblasts-when-delivered-by-extracellular-vesicles
#13
Mojca Frank-Bertoncelj, David S Pisetsky, Christoph Kolling, Beat A Michel, Renate E Gay, Astrid Jüngel, Steffen Gay
Extracellular vesicles (EV) can modulate the responses of cells to toll-like receptor (TLR) ligation; conversely, TLR ligands such as double-stranded RNA (dsRNA) can enhance the release of EV and influence of the composition and functions of EV cargos. Inflamed synovial joints in rheumatoid arthritis (RA) are rich in EV and extracellular RNA; besides, RNA released from necrotic synovial fluid cells can activate the TLR3 signaling in synovial fibroblasts (SFs) from patients with RA. Since EV occur prominently in synovial joints in RA and may contribute to the pathogenesis, we questioned whether EV can interact with dsRNA, a TLR3 ligand, and modify its actions in arthritis...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29423951/early-calp2-expression-and-microglial-activation-are-potential-inducers-of-spinal-il-6-up-regulation-and-bilateral-pain-following-motor-nerve-injury
#14
Shao-Xia Chen, Shao-Kun Wang, Pei-Wen Yao, Guang-Jie Liao, Xiao-Dong Na, Yong-Yong Li, Wei-An Zeng, Xian-Guo Liu, Ying Zang
Previous work from our laboratory showed that motor nerve injury by lumbar 5 ventral root transection (L5-VRT) led to interleukin-6 (IL-6) over-expression in bilateral spinal cord, and that intrathecal administration of IL-6 neutralizing antibody delayed the induction of mechanical allodynia in bilateral hind paws. However, early events and upstream mechanisms underlying spinal IL-6 expression following L5-VRT require elucidation. The model of L5-VRT was used to induce neuropathic pain, which was assessed with von Frey hairs and the plantar tester in adult male Sprague-Dawley rats...
April 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29419425/safety-and-efficacy-of-plerixafor-dose-escalation-for-the-mobilization-of-cd34-hematopoietic-progenitor-cells-in-patients-with-sickle-cell-disease-interim-results
#15
Farid Boulad, Tsiporah Shore, Koen van Besien, Caterina Minniti, Mihaela Barbu-Stevanovic, Sylvie Wiener Fedus, Fabiana Perna, June Greenberg, Danielle Guarneri, Vijay Nandi, Audrey Mauguen, Karina Yazdanbakhsh, Michel Sadelain, Patricia A Shi
Gene therapy for sickle cell disease is limited by the yield of hematopoietic progenitor cells that can be harvested for transduction or gene editing. We therefore performed a phase I dose-escalation study of the hematopoietic progenitor cell mobilizing agent plerixafor to evaluate the efficacy and safety of standard dosing on peripheral blood CD34+ cell mobilization. Of 15 patients enrolled to date, only one was chronically transfused and ten were on hydroxyurea. Of eight patients who achieved a CD34+ cell concentration >30 cells/μL, six were on hydroxyurea...
May 2018: Haematologica
https://www.readbyqxmd.com/read/29410422/a-ligand-specific-blockade-of-the-integrin-mac-1-selectively-targets-pathologic-inflammation-while-maintaining-protective-host-defense
#16
Dennis Wolf, Nathaly Anto-Michel, Hermann Blankenbach, Ansgar Wiedemann, Konrad Buscher, Jan David Hohmann, Bock Lim, Marina Bäuml, Alex Marki, Maximilian Mauler, Daniel Duerschmied, Zhichao Fan, Holger Winkels, Daniel Sidler, Philipp Diehl, Dirk M Zajonc, Ingo Hilgendorf, Peter Stachon, Timoteo Marchini, Florian Willecke, Maximilian Schell, Björn Sommer, Constantin von Zur Muhlen, Jochen Reinöhl, Teresa Gerhardt, Edward F Plow, Valentin Yakubenko, Peter Libby, Christoph Bode, Klaus Ley, Karlheinz Peter, Andreas Zirlik
Integrin-based therapeutics have garnered considerable interest in the medical treatment of inflammation. Integrins mediate the fast recruitment of monocytes and neutrophils to the site of inflammation, but are also required for host defense, limiting their therapeutic use. Here, we report a novel monoclonal antibody, anti-M7, that specifically blocks the interaction of the integrin Mac-1 with its pro-inflammatory ligand CD40L, while not interfering with alternative ligands. Anti-M7 selectively reduces leukocyte recruitment in vitro and in vivo...
February 6, 2018: Nature Communications
https://www.readbyqxmd.com/read/29365467/sirt1-suppresses-atherosclerosis-induced-by-tlr2-mediated-monocyte-adhesion-to-endothelium-through-mac-1-expression
#17
Lee Seung-Jin
No abstract text is available yet for this article.
August 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29282280/ligand-specific-binding-forces-of-lfa-1-and-mac-1-in-neutrophil-adhesion-and-crawling
#18
Ning Li, Hao Yang, Manliu Wang, Shouqin Lü, Yan Zhang, Mian Long
Lymphocyte function-associated antigen-1 (LFA-1) and macrophage-1 antigen (Mac-1) and their counterreceptors such as intercellular cell adhesion molecules (ICAM-1 and ICAM-2), junctional adhesion molecules (JAM-A, JAM-C), and receptors for advanced glycation end products (RAGE) are crucial for promoting polymorphonuclear leukocyte (neutrophil, PMN) recruitment. The underlying mechanisms of ligand-specific bindings in this cascade remain incompletely known. We compared the dynamic force spectra for various LFA-1/Mac-1-ligand bonds using single-molecule atomic force microscopy (AFM) and tested their functions in mediating PMN recruitment under in vitro shear flow...
February 15, 2018: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/29203543/novel-mechanism-behind-the-immunopathogenesis-of-vulvovaginal-candidiasis-neutrophil-anergy
#19
REVIEW
Junko Yano, Brian M Peters, Mairi C Noverr, Paul L Fidel
For over 3 decades, investigators have studied the pathogenesis of vulvovaginal candidiasis (VVC) and recurrent VVC (RVVC) through clinical studies and animal models. While there was considerable consensus that susceptibility was not associated with any apparent deficiencies in adaptive immunity, protective immune mechanisms and the role of innate immunity remained elusive. It was not until an innovative live-challenge design was conducted in women that a fuller understanding of the natural history of infection/disease was achieved...
March 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29202702/c-reactive-protein-crp-but-not-the-related-pentraxins-serum-amyloid-p-and-ptx3-inhibits-the-proliferation-and-induces-apoptosis-of-the-leukemia-cell-line-mono-mac-6
#20
Wensheng Chen, Darrell Pilling, Richard H Gomer
BACKGROUND: Pentraxins are a family of highly conserved secreted proteins that regulate the innate immune system, including monocytes and macrophages. C-reactive protein (CRP) is a plasma protein whose levels can rise to 1000 μg/ml from the normal <3 μg/ ml during inflammation. RESULTS: We find that CRP inhibits proliferation of the human myeloid leukemia cell line Mono Mac 6 with an IC50 of 75 μg/ ml by inducing apoptosis of these cells. The related proteins serum amyloid P (SAP) and pentraxin 3 (PTX3) do not inhibit Mono Mac 6 proliferation...
December 4, 2017: BMC Immunology
keyword
keyword
95813
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"