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SCI, Immunity

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https://www.readbyqxmd.com/read/29451216/does-combined-therapy-of-curcumin-and-epigallocatechin-gallate-have-a-synergistic-neuroprotective-effect-against-spinal-cord-injury
#1
Jiri Ruzicka, Lucia Machova Urdzikova, Barbora Svobodova, Anubhav G Amin, Kristyna Karova, Jana Dubisova, Kristyna Zaviskova, Sarka Kubinova, Meic Schmidt, Meena Jhanwar-Uniyal, Pavla Jendelova
Systematic inflammatory response after spinal cord injury (SCI) is one of the factors leading to lesion development and a profound degree of functional loss. Anti-inflammatory compounds, such as curcumin and epigallocatechin gallate (EGCG) are known for their neuroprotective effects. In this study, we investigated the effect of combined therapy of curcumin and EGCG in a rat model of acute SCI induced by balloon compression. Immediately after SCI, rats received curcumin, EGCG, curcumin + EGCG or saline [daily intraperitoneal doses (curcumin, 6 mg/kg; EGCG 17 mg/kg)] and weekly intramuscular doses (curcumin, 60 mg/kg; EGCG 17 mg/kg)] for 28 days...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29372458/1h-15n-and-13c-resonance-assignments-of-the-third-domain-from-the-s-aureus-innate-immune-evasion-protein-eap
#2
Alvaro I Herrera, Nicoleta T Ploscariu, Brian V Geisbrecht, Om Prakash
Staphylococcus aureus is a widespread and persistent pathogen of humans and livestock. The bacterium expresses a wide variety of virulence proteins, many of which serve to disrupt the host's innate immune system from recognizing and clearing bacteria with optimal efficiency. The extracellular adherence protein (Eap) is a multidomain protein that participates in various protein-protein interactions that inhibit the innate immune response, including both the complement system (Woehl et al in J Immunol 193:6161-6171, 2014) and Neutrophil Serine Proteases (NSPs) (Stapels et al in Proc Natl Acad Sci USA 111:13187-13192, 2014)...
January 25, 2018: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/29355694/mechanical-ventilation-modulates-the-pro-inflammatory-cytokine-expression-in-spinal-cord-tissue-after-injury-in-rats
#3
K Truflandier, E Beaumont, E Charbonney, K Maghni, Michel De Marchie, J Spahija
RATIONALE: Spinal cord injury (SCI) may induce significant respiratory muscle weakness and paralysis, which in turn may cause a patient to require ventilator support. Central nervous system alterations can also exacerbate local inflammatory responses with immune cell infiltration leading to additional risk of inflammation at the injury site. Although mechanical ventilation is the traditional treatment for respiratory insufficiency, evidence has shown that it may directly affect distant organs through systemic inflammation...
January 17, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29317311/concomitant-use-of-mesenchymal-stem-cells-and-neural-stem-cells-for-treatment-of-spinal-cord-injury-a-combo-cell-therapy-approach
#4
Seyed Mojtaba Hosseini, Mahsa Sani, Kh Husnanin Haider, Mohammadreza Dorvash, Seyyed Mohyeddin Ziaee, Aliasghar Karimi, Mohmmad Reza Namavar
with neural stem cells (NSCs) provides a hope to recover the neural damage and compensate for the lost neural structures for restoration of interrupted neural communications above and below the site of injury. However, cell-based therapy approach suffers from many biological barriers and technical caveats which severely hamper the prognosis. The biochemically-rich microenvironment at the site of spinal cord injury (SCI), the continuing neuro-degenerative process and infiltrating immune cells offer a serious barrier to the donor cells...
January 6, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29310515/persons-with-chronic-spinal-cord-injury-have-decreased-nk-cell-and-increased-tlr-inflammatory-gene-expression
#5
Paige Herman, Adam B Stein, Katie Gibbs, Ilya Korsunsky, Peter Gregersen, Ona Bloom
Infections are the leading cause of death for individuals with traumatic spinal cord injury (SCI). Along with increased infection rates, inflammation is often also observed in persons with chronic SCI. Together, immunological changes after SCI are also poised to impede neurological recovery and to mediate common medical consequences of SCI, including atherogenesis and neuropathic pain. The molecular mechanisms contributing to increased infection susceptibility and inflammation in persons living with SCI are poorly understood...
January 8, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29282251/%C3%AE-%C3%AE-t-cells-provide-the-early-source-of-ifn-%C3%AE-to-aggravate-lesions-in-spinal-cord-injury
#6
Guodong Sun, Shuxian Yang, Guangchao Cao, Qianghua Wang, Jianlei Hao, Qiong Wen, Zhizhong Li, Kwok-Fai So, Zonghua Liu, Sufang Zhou, Yongxiang Zhao, Hengwen Yang, Libing Zhou, Zhinan Yin
Immune responses and neuroinflammation are critically involved in spinal cord injury (SCI). γδ T cells, a small subset of T cells, regulate the inflammation process in many diseases, yet their function in SCI is still poorly understood. In this paper, we demonstrate that mice deficient in γδ T cells (TCRδ-/- ) showed improved functional recovery after SCI. γδ T cells are detected at the lesion sites within 24 hours after injury and are predominantly of the Vγ4 subtype and express the inflammatory cytokine IFN-γ...
December 27, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29190648/anterior-chamber-associated-immune-deviation-used-as-a-neuroprotective-strategy-in-rats-with-spinal-cord-injury
#7
Beatriz Pineda-Rodriguez, Diana Toscano-Tejeida, Elisa García-Vences, Roxana Rodriguez-Barrera, Adrian Flores-Romero, Daniela Castellanos-Canales, Gabriel Gutierrez-Ospina, Laura Castillo-Carvajal, Esperanza Meléndez-Herrera, Antonio Ibarra
The inflammatory response is probably one of the main destructive events occurring after spinal cord injury (SCI). Its progression depends mostly on the autoimmune response developed against neural constituents. Therefore, modulation or inhibition of this self-reactive reaction could help to reduce tissue destruction. Anterior chamber associated immune deviation (ACAID) is a phenomenon that induces immune-tolerance to antigens injected into the eye´s anterior chamber, provoking the reduction of such immune response...
2017: PloS One
https://www.readbyqxmd.com/read/29176992/immunosenescence-in-persons-with-spinal-cord-injury-in-relation-to-urinary-tract-infections-a-cross-sectional-study
#8
David Pavlicek, Jörg Krebs, Simona Capossela, Alessandro Bertolo, Britta Engelhardt, Jürgen Pannek, Jivko Stoyanov
Background: Individuals with a spinal cord injury (SCI), despite specialized rehabilitation and good health care, have a reduced life expectancy. Infectious diseases, such as pneumonias, infected pressure sores and urinary tract infections (UTI) have been identified as the leading causes of mortality. We hypothesise that a premature onset of immune frailty occurs in SCI, possibly caused also by recurrent urinary tract infections.A cross sectional study was performed comparing blood and urine samples between able bodied controls (n = 84) and persons with spinal cord injury (n = 85)...
2017: Immunity & Ageing: I & A
https://www.readbyqxmd.com/read/29175543/high-mobility-group-box-1-hmgb1-is-increased-in-injured-mouse-spinal-cord-and-can-elicit-neurotoxic-inflammation
#9
Kristina A Kigerl, Wenmin Lai, Lindsay M Wallace, Huan Yang, Phillip G Popovich
Inflammation is a ubiquitous but poorly understood consequence of spinal cord injury (SCI). The mechanisms controlling this response are unclear but culminate in the sequential activation of resident and recruited immune cells. Collectively, these cells can exert divergent effects on cell survival and tissue repair. HMGB1 is a ubiquitously expressed DNA binding protein and also a potent inflammatory stimulus. Necrotic cells release HGMB1, but HMGB1 also is actively secreted by inflammatory macrophages. A goal of this study was to quantify spatio-temporal patterns of cellular HMGB1 expression in a controlled mouse model of experimental SCI then determine the effects of HMGB1 on post-SCI neuroinflammation and recovery of function...
November 22, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29173165/running-head-chalcones-as-immunomodulatory-agents-exploring-promising-immunomodulatory-potential-of-natural-and-synthetic-1-3-diphenyl-2-propen-1-one-analogs-a-review-of-mechanistic-insight
#10
Muhammad Hassan Safdar, Humna Hasan, Sajal Afzal, Zahid Hussain
BACKGROUND: The immune system is an intricate and coordinated nexus serving as a natural defense to preclude internal and external pathogenic insults. The deregulation in the natural balance of immunological functions, as a consequence of either over expression or under expression of immune cells may cause development of numerous immune disorders. Chalcone moieties (1,3-diphenyl-2-propen-1-one) have been well-documented as ideal lead compounds or precursors to design wide range of pharmacologically active agents to down-regulate various immune disorders...
November 23, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/29101668/gut-microbiota-are-disease-modifying-factors-after-traumatic-spinal-cord-injury
#11
REVIEW
Kristina A Kigerl, Klauss Mostacada, Phillip G Popovich
Spinal cord injury (SCI) disrupts the autonomic nervous system (ANS), impairing its ability to coordinate organ function throughout the body. Emerging data indicate that the systemic pathology that manifests from ANS dysfunction exacerbates intraspinal pathology and neurological impairment. Precisely how this happens is unknown, although new data, in both humans and in rodent models, implicate changes in the composition of bacteria in the gut (i.e., the gut microbiota) as disease-modifying factors that are capable of affecting systemic physiology and pathophysiology...
November 3, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29065765/rolipram-loaded-polymeric-micelle-nanoparticle-reduces-secondary-injury-after-rat-compression-spinal-cord-injury
#12
Christian Macks, So-Jung Gwak, Michael Lynn, Jeoung Soo Lee
Among the complex pathophysiological events following spinal cord injury, one of the most important molecular level consequences is a dramatic reduction in neuronal cyclic adenosine monophosphate (cAMP) levels. Many studies shown that rolipram (Rm), a phosphodiesterase IV (PDE4) inhibitor, can protect against secondary cell death, reduce inflammatory cytokine levels and immune cell infiltration, and increase white matter sparing and functional improvement. Previously, we developed a polymeric micelle nanoparticle, (poly (lactide-co-glycolide)-g-polyethylenimine, PgP) for combinatorial delivery of therapeutic nucleic acids (TNAs) and drugs for SCI repair...
October 25, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29064422/systemic-interleukin-4-administration-after-spinal-cord-injury-modulates-inflammation-and-promotes-neuroprotection
#13
Rui Lima, Susana Monteiro, José P Lopes, Pedro Barradas, Natália L Vasconcelos, Eduardo D Gomes, Rita C Assunção-Silva, Fábio G Teixeira, Mónica Morais, Nuno Sousa, António J Salgado, Nuno A Silva
Traumatic spinal cord injury (SCI) causes dramatic disability and dysfunction in the motor, sensory and autonomic systems. The severe inflammatory reaction that occurs after SCI is strongly associated with further tissue damage. As such, immunomodulatory strategies have been developed, aimed at reducing inflammation, but also at shaping the immune response in order to protect, repair and promote regeneration of spared neural tissue. One of those promising strategies is the intraspinal administration of the cytokine interleukin-4 (IL-4) that was shown to promote a phenotype on specific immune cells associated with neuroprotection and repair...
October 24, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/29044129/priming-with-fgf2-stimulates-human-dental-pulp-cells-to-promote-axonal-regeneration-and-locomotor-function-recovery-after-spinal-cord-injury
#14
Kosuke Nagashima, Takahiro Miwa, Hitomi Soumiya, Daisuke Ushiro, Tomoko Takeda-Kawaguchi, Naritaka Tamaoki, Saho Ishiguro, Yumi Sato, Kei Miyamoto, Takatoshi Ohno, Masatake Osawa, Takahiro Kunisada, Toshiyuki Shibata, Ken-Ichi Tezuka, Shoei Furukawa, Hidefumi Fukumitsu
Human dental pulp cells (DPCs), adherent cells derived from dental pulp tissues, are potential tools for cell transplantation therapy. However, little work has been done to optimize such transplantation. In this study, DPCs were treated with fibroblast growth factor-2 (FGF2) for 5-6 consecutive serial passages and were transplanted into the injury site immediately after complete transection of the rat spinal cord. FGF2 priming facilitated the DPCs to promote axonal regeneration and to improve locomotor function in the rat with spinal cord injury (SCI)...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29018286/complement-protein-c3-suppresses-axon-growth-and-promotes-neuron-loss
#15
Sheri L Peterson, Hal X Nguyen, Oscar A Mendez, Aileen J Anderson
The inflammatory response to spinal cord injury (SCI) involves localization and activation of innate and adaptive immune cells and proteins, including the complement cascade. Complement C3 is important for the classical, alternative, and lectin pathways of complement activation, and its cleavage products C3a and C3b mediate several functions in the context of inflammation, but little is known about the potential functions of C3 on regeneration and survival of injured neurons after SCI. We report that 6 weeks after dorsal hemisection with peripheral conditioning lesion, C3(-/-) mice demonstrated a 2-fold increase in sensory axon regeneration in the spinal cord in comparison to wildtype C3(+/+) mice...
October 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28967695/intravenous-immunoglobulin-for-the-treatment-of-childhood-encephalitis
#16
REVIEW
Mildred A Iro, Natalie G Martin, Michael Absoud, Andrew J Pollard
BACKGROUND: Encephalitis is a syndrome of neurological dysfunction due to inflammation of the brain parenchyma, caused by an infection or an exaggerated host immune response, or both. Attenuation of brain inflammation through modulation of the immune response could improve patient outcomes. Biological agents such as immunoglobulin that have both anti-inflammatory and immunomodulatory properties may therefore be useful as adjunctive therapies for people with encephalitis. OBJECTIVES: To assess the efficacy and safety of intravenous immunoglobulin (IVIG) as add-on treatment for children with encephalitis...
October 2, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28947081/chronic-il-33-expression-predisposes-to-virus-induced-asthma-exacerbations-by-increasing-type-2-inflammation-and-dampening-antiviral-immunity
#17
Rhiannon B Werder, Vivian Zhang, Jason P Lynch, Natale Snape, John W Upham, Kirsten Spann, Simon Phipps
BACKGROUND: Rhinovirus infection triggers acute asthma exacerbations. IL-33 is an instructive cytokine of type 2 inflammation whose expression is associated with viral load during experimental rhinovirus infection of asthmatic patients. OBJECTIVE: We sought to determine whether anti-IL-33 therapy is effective during disease progression, established disease, or viral exacerbation using a preclinical model of chronic asthma and in vitro human primary airway epithelial cells (AECs)...
September 22, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28901001/-early-versus-traditional-postoperative-oral-feeding-in-patients-undergoing-elective-colorectal-surgery-a-meta-analysis-of-safety-and-efficacy
#18
Kun Zhang, Sirong Cheng, Qi Zhu, Zhenguo Han
OBJECTIVE: To compare the outcomes of early oral feeding (EOF) and the traditional oral feeding (TOF) in postoperative patients with colorectal cancer using Meta-analysis. METHODS: The databases of PubMed, SCI, Ovid, The Cochrane Library, CNKI, CBM, VIP and Wanfang Data were searched to collect randomized controlled trial (RCT) about EOF versus TOF in patients undergoing elective colorectal surgery. The retrieval time span was from inception to June 1, 2016. The studies were screened according to the inclusion and exclusion criteria...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28887001/major-findings-and-recent-advances-in-virus-like-particle-vlp-based-vaccines
#19
REVIEW
Mona O Mohsen, Lisha Zha, Gustavo Cabral-Miranda, Martin F Bachmann
Virus-like particles (VLPs) have made giant strides in the field of vaccinology over the last three decades. VLPs constitute versatile tools in vaccine development due to their favourable immunological characteristics such as their size, repetitive surface geometry, ability to induce both innate and adaptive immune responses as well as being safe templates with favourable economics. Several VLP-based vaccines are commercially available including vaccines against Human Papilloma Virus (HPV) such as Cervarix(®), Gardasil(®) & Gardasil9(®) and Hepatitis B Virus (HBV) including the 3rd generation Sci-B-Vac™...
September 5, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28884424/immunobiology-of-spinal-cord-injuries-and-potential-therapeutic-approaches
#20
REVIEW
Aabra Ahmed, Arun-Angelo Patil, Devendra K Agrawal
The incidence of spinal cord injuries (SCI) is high every year. As the spinal cord is the highway that allows for the brain to control the rest of the body, spinal cord injuries greatly impact the quality of life of the patients. The SCI include the primary response consisting of the initial accident-induced damage and the secondary response that is characterized by damage due to inflammation and biological responses. Astrocytes are the first to act at the site of the injury, forming a glial scar and attracting immune cells...
September 7, 2017: Molecular and Cellular Biochemistry
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