Search results for: monoclonal
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Development of an immunoaffinity column for the highly sensitive analysis of bisphenol A in 14 kinds of foodstuffs using ultra-high-performance liquid chromatography tandem mass spectrometry.An immunoaffinity clean-up material based on a monoclonal antibody (mAb) has been prepared for concentrating and purifying bisphenol A (BPA) in 14 kinds of foodstuffs at trace level. Haptens and immunogen of bisphenol A have been synthesized and comprehensively characterized. An mAb towards BPA was prepared and cross-reactivities with 14 BPA analogues were below 5%. The prepared antibody was coupled to N-hydroxysuccinimide-activated Sepharose 4B to manufacture an immunoaffinity column (IAC), which was applied to purify BPA in 14 kinds of foodstuffs. The analyte was then detected by means of ultra-high-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). Under the optimized conditions, compared with two traditional SPE clean-up methods, the IAC showed better selectivity (matrix effect <16.8%) and higher sensitivity. The limits of detection for BPA in 14 kinds of foodstuffs ranged from 0.001 μg Lto 0.01 μg kg, and the limits of quantification were in the range from 0.003 μg Lto 0.04 μg kg. The recoveries of BPA from spiked samples ranged from 82.0% to 104.9%, with RSDs below 13.8%. Besides, the IAC exhibited good reusability, with 40% column capacity remaining and no significant loss of recovery after 25 application cycles in real sample detection. These results demonstrated that the developed IAC-UPLC-MS/MS approach has wide applicability for purifying and detecting BPA in various foodstuffs.
1607 related Products with: Development of an immunoaffinity column for the highly sensitive analysis of bisphenol A in 14 kinds of foodstuffs using ultra-high-performance liquid chromatography tandem mass spectrometry.Cytoskeleton II Phospho-S Rabbit Anti-Inf A Neurami Beta Amyloid (1 42) High Apoptosis antibody array Cell cycle antibody array Cytokine antibody array i Signal transduction antib AKT Phospho-Specific Arra AKT PKB Signaling Phospho AMPK Signaling Phospho-Sp Apoptosis Phospho-Specifi Cancer Apoptosis Phospho-
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Targeted inhibition of sclerostin for post-menopausal osteoporosis therapy: a critical assessment of the mechanism of action.Promising news in the treatment of osteoporosis is that sequestering sclerostin from circulation with antibodies stimulates robust bone formation. Pre-clinical studies on rodents and monkeys have confirmed that treatment with anti-sclerostin monoclonal antibody (Scl-Ab) increases bone mass improves bone strength and enhances fracture repair. Clinical trials show that bone gain (anabolic effect) is transient and are primarily at central (spine and hips) than peripheral (wrist) sites. Interestingly Scl-Ab also inhibited bone resorption. Thus Scl-Ab is being regarded as the pharmacologic agent with dual properties - stimulating bone formation and decreasing bone resorption. Sclerostin neutralization transiently increases bone formation markers in post-menopausal women and like parathyroid hormone (PTH) activates osteoblasts and lining cells resulting in bone anabolic effect. However, unlike PTH, sclerostin antibody also decreases bone resorption (anti-catabolic). Although, the U.S. Food and Drug Administration have accepted the Biologics License Application for one of the monoclonal antibodies against sclerostin (romosozumab) for review, many questions remain before romosozumab can be introduced as a skeletal anabolic agent to clinical practice. For example, neutralizing sclerostin alters calcium homeostasis and increases PTH. In addition, sclerostin depletion in preclinical studies has been reported to severely compromises B cell depletion in bone marrow. We have reviewed the currently available evidences that support the use of sclerostin antibody in treating osteoporosis and compare its efficacy and mechanism of action with the currently available anabolic drug, human PTH.
1303 related Products with: Targeted inhibition of sclerostin for post-menopausal osteoporosis therapy: a critical assessment of the mechanism of action.Ofloxacin CAS Number [824 MOUSE ANTI BOVINE ROTAVIR Bone Morphogenetic Protei Growth Differentiation Fa Amplite™ Fluorimetric F MOUSE ANTI BORRELIA BURGD succinate-CoA ligase, GDP TCP-1 theta antibody Sour formin-like 1 antibody So succinate-CoA ligase, ADP Primary antibody Caspase Primary antibody FLIP An
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CD 18-mediated adhesion is required for the induction of a proinflammatory phenotype in lung epithelial cells by mononuclear cell-derived extracellular vesicles.Extracellular vesicles are submicron vesicles that upregulate the synthesis of proinflammatory mediators by lung epithelial cells. We investigated whether these structures adhere to lung epithelial cells, and whether adhesion is a prerequisite for their proinflammatory activity. Extracellular vesicles were generated by stimulation of normal human mononuclear cells with the calcium ionophore A23187, and labelled with carboxyfluorescein diacetate succinimidyl ester. Adhesion of vesicles to monolayers of immortalized bronchial epithelial (16HBE) and alveolar (A549) cells was analysed by fluorescence microscopy. The role of candidate adhesion receptors was evaluated with inhibitory monoclonal antibodies and soluble peptides. The synthesis of proinflammatory mediators was assessed by ELISA. Transmission electron microscopy confirmed the generation of closed vesicles with an approximate size range between 50 and 600nm. Adhesion of extracellular vesicles to epithelial cells was upregulated upon stimulation of the latter with tumour necrosis factor-α. Adhesion was blocked by an anti-CD18 antibody, by peptides containing the sequence RGD and, to a lesser extent, by an antibody to ICAM-1. The same molecules also blocked the upregulation of the synthesis of interleukin-8 and monocyte chemotactic protein-1 induced by extracellular vesicles. CD18-mediated adhesion of extracellular vesicles is a prerequisite for their proinflammatory activity.
2856 related Products with: CD 18-mediated adhesion is required for the induction of a proinflammatory phenotype in lung epithelial cells by mononuclear cell-derived extracellular vesicles.Multiple lung carcinoma ( NycoPrep™ 1.077, for is Non small cell lung carci Lung squamous cell carcin Rabbit Anti-Integrin beta Rabbit Anti-Integrin beta Rabbit Anti-Integrin beta Rabbit Anti-Integrin beta Rabbit Anti-Integrin beta Rabbit Anti-Integrin beta Rabbit Anti-Integrin β2 Rabbit Anti-Integrin β2
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An RNA-seq based transcriptomic investigation into the productivity and growth variants with Chinese Hamster Ovary cells.Chinese hamster ovary (CHO) cells are widely used to produce monoclonal antibodies (mAbs), however, these cell lines can show significant variants associated with productivity and growth. Fundamental understanding of cellular mechanisms can benefit high mAbs production while maintaining robust cell growth. In this study, RNA sequencing (RNA-seq) based approach was used to study the transcriptomic space among three mAb-producing CHO cell lines. A phenotypic contrast of higher productivity but lower growth was found with one cell line versus the other two cell lines. The messenger RNAs from those cells at two different time points in culture were sequenced to seek the gene functions possibly associated with the phenotypic differences. It was found that the mAb transcripts from each cell line were correlated with the mAb production level, indicating a strong determination of production by the expression level of gene of interest (GOI). Further exploration in the global transcriptome showed that the high producers had more expression with genes related with secretion and protein transportation. In the meantime, the slower growth of the high producers was linked to higher regulation to cell growth as well as lower gene expression on biosynthesis, central metabolism and nutrient transport.
1993 related Products with: An RNA-seq based transcriptomic investigation into the productivity and growth variants with Chinese Hamster Ovary cells.Hamster anti mouse Insuli HIV type O envelope antig HIV 2 gp36 envelope antig Anti C Reactive Protein A Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon anti HSV (II) gB IgG1 (mo anti HCMV IE pp65 IgG1 (m anti HCMV gB IgG1 (monocl Epidermal Growth Factor (
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Evidence of a role for spinal HMGB1 in ischemic stress-induced mechanical allodynia in mice.We have previously showed that spinal high-mobility group box-1 (HMGB1) plays an important role in the induction of central post-stroke pain (CPSP). It has been reported that HMGB1 exacerbates inflammation and pain via TLR4 or RAGE. Furthermore, the relationship between glial cells, such as microglia and astrocytes, involved in pain exacerbation and HMGB1 has also attracted attention. In this study, we investigated whether the interaction between spinal glial cells and HMGB1 signaling, including its receptors TLR4 or RAGE, is directly involved in the induction of CPSP. Spinal HMGB1 expression increased on day 3 after bilateral carotid artery occlusion (BCAO), and spinal microglia and astrocytes were clearly activated. HMGB1 colocalized with neurons, but not with microglia and astrocytes after BCAO. Intrathecal (i.t.) injection of lipopolysaccharides from Rhodobacter sphaeroides (LPS-RS, a TLR4 antagonist) and low-molecular-weight heparin (LMWH, a RAGE antagonist) significantly blocked mechanical allodynia on day 3 after BCAO. BCAO-induced activation of spinal microglia and astrocyte were suppressed by i.t. anti-HMGB1 monoclonal antibody (mAb) and LPS-RS administration. In addition, i.t. injection of N-nitro-L-arginine methyl ester [a nonselective nitric oxide synthetase (NOS) inhibitor] significantly blocked mechanical allodynia on day 3 after BCAO and i.t. administration of anti-HMGB1 mAb, LPS-RS, and LMWH significantly inhibited the increase of NOS activity in the spinal cord on day 3 after BCAO. These results showed that the interaction between spinal glial cells and HMGB1/TLR4/NOS or HMGB1/RAGE/NOS is directly involved in the induction of CPSP.
2696 related Products with: Evidence of a role for spinal HMGB1 in ischemic stress-induced mechanical allodynia in mice.Anti beta3 AR Human, Poly Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon Anti AGO2 Human, Monoclon Anti AGO2 Mouse, Monoclon TGF beta induced factor 2 Breast invasive ductal ca Multiple lung carcinoma ( OxiSelect™ Cellular UV- Anti-AICDA(Activation-ind Anti AICDA(Activation ind Interleukin-34 IL34 (N-t
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A luciferase immunoprecipitation assay for the detection of proinsulin/insulin autoantibodies.Luciferase immunoprecipitation (LIPS) assays show good sensitivity and specificity in testing islet specific autoantibodies for diagnosis of type 1 diabetes (T1D). However, there are currently no LIPS assays available for detecting proinsulin/insulin autoantibody (IAA) previously. We here developed a LIPS assay to measure IAA using nano luciferase (NanoLuc)-proinsulin fusion protein.
2337 related Products with: A luciferase immunoprecipitation assay for the detection of proinsulin/insulin autoantibodies.MarkerGeneTM Fluorescent Amplite™ Luciferase Rep Amplite™ Luciferase Rep Amplite™ Luciferase Rep Amplite™ Gaussia Lucife Amplite™ Gaussia Lucife Amplite™ Renilla Lucife Amplite™ Renilla Lucife Amplite™ Renilla Lucife GLP 1 ELISA Kit, Rat Gluc Glucose Assay With the La Cultrex In Vitro Angiogen
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Immunosuppression in pregnant women with renal disease: review of the latest evidence in the biologics era.Care of pregnant woman, including fertility and procreation counseling, has become a significant part of the nephrological practice in the last years. In this context, the management of immunosuppression assumes a primary role both for autoimmune diseases and for post-transplant follow up. The present review analyzes the latest evidence on immunosuppressive drugs of current use in nephrology and kidney transplantation. Although the placenta inactivates prednisone and prednisolone, it is advisable to limit the dose to the minimal effective one, to prevent side effects. Azathioprine is generally the immunosuppressive of choice in many high-risk pregnancies in autoimmune diseases because of the safety profile and its steroid-sparing property. In lupus nephropathy, hydroxychloroquine is a current indication in the prevention of flares. Cyclosporine and tacrolimus can also be used as steroid-sparing agents as well as in post-transplant maintenance therapy. Experience on mammalian target of rapamycin inhibitors is limited and its use during pregnancy is still controversial even if initial positive data are emerging. Intravenous immunoglobulins are safe and represent an important option for relapses of lupus and vasculitis. Mycophenolate mofetil and cyclophosphamide are to avoid. An important part is reserved to biologic agents, which are having a huge impact on therapy protocols for several pathologies. Data on the utilization of these molecules during pregnancy, however, are still scant and therefore they do not yet allow a definitive evaluation of their safety profile.
1428 related Products with: Immunosuppression in pregnant women with renal disease: review of the latest evidence in the biologics era.Thermal Shaker with cooli FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Renal disease spectrum ti Multiple organ tumor tiss MultiGene Gradient therm Beta Amyloid (42) ELISA K Beta Amyloid (1 40) ELISA
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Targeted Delivery of Doxorubicin via CD147-Mediated ROS/pH Dual-Sensitive Nanomicelles for the Efficient Therapy of Hepatocellular Carcinoma.Low accumulation in tumor sites and slow intracellular drug release remain as the obstacles for nanoparticles to achieve effective delivery of chemotherapeutic drugs. In this study, multifunctional micelles were designed to deliver doxorubicin (Dox) to tumor sites to provide more efficient therapy against hepatic carcinoma. The micelles were based on pH-responsive carboxymethyl chitosan (CMCh) modified with a reactive oxygen species (ROS)-responsive segment phenylboronic acid pinacol ester (BAPE) and an active targeted ligand CD147 monoclonal antibody. The Dox-loaded micelles provided rapid and complete drug release in pH 5.3 incubation conditions with 1 mM HO. In addition, an in vitro cell uptake study revealed that CD147 modification significantly enhanced cellular internalization due to the high affinity to CD147 receptors, which are overexpressed on tumor cells. An in vivo study revealed that CD147-modified micellar formulations exhibited high accumulation in tumor sites and markedly enhanced antiproliferation effects with fewer side effects than other formulations. In conclusion, this CD147 receptor targeted delivery system with ROS/pH dual sensitivity provides a promising strategy for the treatment of hepatic carcinoma.
1944 related Products with: Targeted Delivery of Doxorubicin via CD147-Mediated ROS/pH Dual-Sensitive Nanomicelles for the Efficient Therapy of Hepatocellular Carcinoma.Allergens, Phospholipase Cell Meter™ Cell Viabil Breast invasive ductal ca Hepatocellular carcinoma Hepatocellular carcinoma Hepatocellular carcinoma 10X PHOSPHATE BUFFERED SA Multiple lung carcinoma ( Liver hepatocellular carc Liver cancer (hepatocellu Hepatocellular carcinoma Hepatocellular carcinoma
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IgA nephropathy: toward more specific diagnosis (and rescue of snails).The diagnosis of IgA nephropathy relies on the histologic demonstration of glomerular mesangial IgA deposits. However, only a very small fraction of IgA, namely, galactose-deficient IgA1, seems to induce the disease. So far, this type of IgA could only be detected using mass spectrometry or lectins, which are relatively difficult to standardize. A novel monoclonal antibody, KM55, specifically recognizing galactose-deficient IgA1, may now change this.
goat IgG against monkey I Actin, Muscle Specific; Actin, Muscle Specific; PSA (Prostate Specific A PSA (Prostate Specific A PSAP (Prostate Specific PSAP (Prostate Specific PSA (Prostate Specific A PSA (Prostate Specific A Actin, Muscle Specific; PSA (Prostate Specific A PSAP (Prostate Specific
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Generation of murine monoclonal antibodies with specificity against conventional camelid IgG1 and heavy-chain only IgG2/3.Camelids possess antibodies with a conventional four-chain structure consisting of two heavy and two light chains (of subclass IgG1) but further they also generate heavy-chain only antibodies (of subclass IgG2 and 3) which are fully functional in antigen binding. In this study subclass-specific murine monoclonal antibodies specific to conventional camelid IgG1 and heavy-chain only IgG2/3 were generated and validated for the use as potent secondary detection reagents. The monoclonal antibodies are able to differentiate between all camelid IgGs, conventional four-chain camelid antibodies (of subclass IgG1) and exclusively heavy chain-only antibodies (of subclasses IgG2 and IgG3). Further these antibodies were used to detect specific immune responses after vaccination of Camelids against bovine corona- and rotavirus strains and different E.coli and Clostridia - antigens and to identify Erysipelothrix rhusiopathiae infected animals within a herd. The described antibodies are suitable as new secondary agents for the detection of different camelid subclasses and the validation of camelid immune reactions.
1433 related Products with: Generation of murine monoclonal antibodies with specificity against conventional camelid IgG1 and heavy-chain only IgG2/3.Signal Transduction Anti HIV1 gp41 antibody, Monoc HIV1 integrase antibody, HIV2 p26 antibody, Monocl HIV1 Nef antibody, Monocl HIV1 Nef antibody, Monocl CD4 antibody, Monoclonal CD4 antibody, Monoclonal HIV1 p24 antibody, Monocl HIV1 Rev antibody, Monocl HIV2 gp105 antibody, Mono HIV1-RT antibody, Monoclo
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