PubMed Journals Articles About "Jackson ImmunoResearch Anti Alpaca Secondary Antibodies" RSS

00:57 EST 28th February 2020 | BioPortfolio

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Showing "Jackson ImmunoResearch Anti Alpaca secondary antibodies" PubMed Articles 1–25 of 12,000+

T-Cell Engagers Based Bioassay for Evaluation of PD-1/PD-L1 Inhibitors Activity.

PD-1/PD-L1-based therapy has been named a revolution in cancer treatment. By the end of 2018, more than 100 anti-PD-1 and anti-PD-L1 antibodies were in various stages of development, and more than 2000 clinical trials with their use have been registered. Characterization of such antibodies requires a bioassay to determine their biological activity. In this study, we developed a cell-based bioassay for analyzing the activity of anti-PD-1 and anti-PD-L1 antibodies. We chose reporter system consisting of two c...

Refractory epilepsy associated with anti-ribosomal P antibodies successfully treated with topiramate.

We report the case of a 25-year-old woman who developed temporal lobe epilepsy associated with systemic lupus erythematosus (SLE). Serum and cerebrospinal fluid samples showed high titers of anti-ribosomal P (anti-P) antibodies with negative anti-NMDAR antibodies. She was receiving prednisone and azathioprine, with normalization of SLE serum markers, but without changes in titers of anti-P antibodies. No seizure control was achieved using valproic acid, levetiracetam and lamotrigine. However, she had a sele...

HLA-DQA1*05 Carriage Associated With Development of Anti-Drug Antibodies to Infliximab and Adalimumab in Patients With Crohn's Disease.

Anti-tumor necrosis factor (anti-TNF) therapies are the most widely used biologic drugs for treating immune-mediated diseases, but repeated administration can induce the formation of anti-drug antibodies. The ability to identify patients at increased risk for development of anti-drug antibodies would facilitate selection of therapy and use of preventative strategies.

Recurrence of goodpasture syndrome with negative antiglomerular basement antibodies. Report of one case.

Goodpasture Syndrome is described as a single episode disease entity. It is diagnosed with the demonstration of antiglomerular basement (anti-GBM) antibodies in plasma or renal tissue. Although the recurrence of anti-GBM disease is rare, it has been reported in up to 3% of cases. Recurrence with negative anti-GBM antibodies in plasma is even less frequent We report a 63 years old male in whom anti-GBM disease recurred without detectable anti-GBM antibodies in plasma, despite having positive antibodies at th...

Epitope Mapping of PMab-225 an Anti-Alpaca Podoplanin Monoclonal Antibody Using Flow Cytometry.

Podoplanin (PDPN) is a mucin-type membrane glycoprotein, and possesses three platelet aggregation-stimulating (PLAG) domains: PLAG1, PLAG2, and PLAG3 at the N-terminus of PDPN, and one or two PLAG-like domains (PLDs) in the middle of PDPN. PDPN is expressed on normal tissues, such as podocytes of the kidney and type I alveolar cells of the lung, and is also overexpressed in numerous malignant cancers. Previously, we reported a novel anti-alpaca podoplanin (aPDPN) monoclonal antibody (mAb), PMab-225, using C...

Native versus deglycosylated IgM in anti-MAG neuropathy: Correlation with clinical status - Study of 10 cases.

In anti-myelin associated glycoprotein (anti-MAG) neuropathies, there is evidence that anti-MAG antibodies are pathogenic but numerous studies report the absence or a weak correlation between the titers of these antibodies and disease course. In this study we assessed the relationships between MAG and glycosylated moieties located on Fc fragment of IgM anti-MAG.

Clinical usefulness of anti-M-type phospholipase-A-receptor antibodies in patients with membranous nephropathy and the comparison of three quantification methods.

Associations between anti-M-type phospholipase A2 receptor (PLA2R) antibodies and disease activity and prognosis have been suggested in primary membranous nephropathy (MN); however, more evidence is needed. We aimed to establish a clinically useful method to measure anti-PLA2R antibodies. We developed a western blot assay and a cell-based enzyme-linked immunosorbent assay (ELISA). Anti-PLA2R antibodies were evaluated retrospectively using these assays and the commercial solid-phase ELISA. Anti-PLA2R antibod...

Pancreatic anti-GP2 and anti-Saccharomyces cerevisiae antibodies in ruminants with paratuberculosis: A better understanding of the immunopathogenesis of Crohn's disease.

Ruminants (cattle and sheep) with Mycobacterium avium (MAP)-induced paratuberculosis (ptb), the ruminant model of Crohn's disease (CD), exhibit pancreatic specific autoantibodies (PAB) against GP2 but not against CUZD1. Since anti-Saccharomyces cerevisiae antibodies (ASCAs) is a CD marker, we tested MAP-infected ptb ruminants for ASCA, and compared them with ruminants lacking evidence of anti-MAP serology or with ruminants, which were positive for anti-GP2 antibodies.

Reassessment of the clinical impact of preformed donor-specific anti-HLA-Cw antibodies in kidney transplantation.

Anti-denatured HLA-Cw antibodies are highly prevalent while anti-native HLA-Cw antibodies seem to lead to random flow cytometry crossmatch results. We aimed to reassess crossmatch prediction for anti-HLA-Cw using two types of Single Antigen Flow Beads (classical beads and beads with diminished expression of denatured HLA), and to compare the pathogenicity of preformed anti-denatured and anti-native HLA-Cw antibodies in kidney transplantation. We performed 135 crossmatches with sera reacting against donor HL...

Antibodies against carbamylated vimentin exist in systemic lupus erythematosus and correlate with disease activity.

Antibodies against carbamylated protein (anti-CarP) were found to be a promising marker to evaluate joint damage and disease activity in patients with rheumatoid arthritis (RA). However, whether anti-CarP antibodies were present in systemic lupus erythematosus (SLE) remained ambiguous. We have therefore undertaken this study to assess the levels of serum anti-CarP antibodies and to evaluate their clinical value in SLE.

Acute lymphoblastic leukaemia patients treated with PEGasparaginase develop antibodies to PEG and the succinate linker.

Polyethylene glycol (PEG) conjugated asparaginase (PEGasparaginase) is essential for treatment of paediatric acute lymphoblastic leukaemia. We developed an assay identifying antibodies against the PEG-moiety, the linker and the drug itself in patients experiencing hypersensitivity reactions to PEGasparaginase. Eighteen patients treated according to the DCOG ALL-11 protocol, with a neutralizing hypersensitivity reaction to PEGasparaginase to the first PEGasparaginase doses in induction (12 patients) or durin...

Anti-β2GPI domain 1 antibodies stratify high risk of thrombosis and late pregnancy morbidity in a large cohort of Chinese patients with antiphospholipid syndrome.

Anti-β2GPI-Domain 1 (β2GPI-D1) antibodies are considered to be a pathogenic subset of anti-β2GPI antibodies and have been strongly associated with thrombosis and pregnancy morbidity in patients with antiphospholipid syndrome (APS). We evaluated the clinical utility of anti-β2GPI-D1 IgG antibodies for stratifying the risk of thrombosis and/or pregnancy morbidity (PM) in a cohort of Chinese patients with APS and also assessed its correlation with the Global Anti-Phospholipid Syndrome Score (GAPSS).

The (non-)sense of detecting anti-cardiolipin and anti-β2glycoprotein I IgM antibodies in the antiphospholipid syndrome.

The antiphospholipid syndrome (APS) is characterized by thrombosis and/or pregnancy morbidity with the persistent presence of lupus anticoagulant (LAC), anti-cardiolipin (aCL) and/or anti-β2glycoprotein I (aβ2GPI) antibodies of the IgG/IgM isotype. However, the role of aCL and aβ2GPI IgM as a serologic marker in APS is debated.

aCL/βGPI and aPS/PT show synergic thrombogenic effects in suppressing anticoagulant activity of APC and stimulating tissue factor expression and TNF-α secretion by mononuclear cells.

Patients with systemic lupus erythematosus (SLE) possessing anti-phospholipid antibodies (aPLs) are often complicated by thrombotic vascular events. aPLs commonly associated with the complications are anti-cardiolipin/β-glycoprotein I antibodies (aCL/βGPI) and anti-phosphatidylserine/prothrombin antibodies (aPS/PT). However, the pathological mechanisms leading to thrombosis remain unclear. We explored clinical features of SLE patients with aCL/βGPI and aPS/PT and investigated thrombogenic effects of thei...

Anti-transcriptional intermediary factor 1 gamma antibodies in cancer-associated myositis: a longitudinal study.

To investigate anti-TIF1-γ antibodies in longitudinally followed patients with myositis and cancer.

Expression and detection of anti-HBs antibodies after hepatitis B virus infection or vaccination in the context of protective immunity.

Anti-HBs antibodies develop after natural infection with hepatitis B virus (HBV) or vaccination against this virus, as a result of activation of the human immune system by the HBV surface antigen (HBsAg). Anti-HBs-positive individuals are immunologically competent against HBV infection. This immunity is determined by the antibody levels in the bloodstream after resolution of natural infection or after vaccination. Anti-HBs antibody levels have been observed to decrease to below the protective level years af...

Predictive value of high titer of GAD65 antibodies in a case of limbic encephalitis.

We report the case of a 42-year-old woman who presented with vertigo and migraine and rapidly developed cognitive decline and seizures. Both serum and cerebro-spinal fluid samples showed high titer of anti-glutamic acid decarboxylase (anti-GAD65) antibodies (998,881 IU/ml and 54,687 IU/ml respectively). Limbic encephalitis was diagnosed and high dose steroids treatment started. During one-year follow-up, without further immunomodulatory therapy, the patient became seizure free, and cognitive functions r...

Paraneoplastic subacute degeneration of the cerebellum in non-small cell lung cancer and positive anti-Tr3 antibodies.

Neurological disorders can occur before the diagnosis of a malignoma is set. These disorders are induced by a misguided immune response with antibodies against intracellular or cell surface antigens. One of the most common paraneoplastic diseases is the subacute degeneration of the cerebellum. In most of the cases antibodies against Anti Hu, CRMP5/CV2, Amphiphysin and Ma/Ta are found and small cell bronchial carcinoma, breast cancer and lymphoma are diagnosed. We report about a 67 years old man with cerebel...

Prevalence of autoantibodies directed against prothrombin in unprovoked venous thromboembolism.

The anti-phospholipid syndrome (APS) is defined by the laboratory detection of at least one of three anti-phospholipid autoantibodies (lupus anticoagulant, or anti-cardiolipin or anti-β-glycoprotein I antibodies) in the clinical setting of thrombosis or pregnancy morbidity in a patient. Recognising APS and administering appropriate secondary thromboprophylaxis is important to reduce risk of recurrent thrombosis and/or pregnancy morbidity. In some instances, patients having clinical manifestations highly su...

Serial brain MRI changes related to autoimmune pathophysiology in Hashimoto encephalopathy with anti-NAE antibodies: A case-series study.

Hashimoto encephalopathy (HE) is an autoimmune-mediated encephalopathy associated with anti-thyroid antibodies. We previously discovered serum autoantibodies against the NH-terminal of α-enolase (NAE), which serve as a specific diagnostic biomarker for HE and may be involved in the autoimmune pathophysiology of HE, including vasculitis. Although the common findings of brain magnetic resonance imaging (MRI) in HE have been recognized as normal or non-specific white matter lesions, serial MRI changes have be...

One-year follow-up of anti-Leishmania antibody concentrations in serum and saliva from experimentally infected dogs.

The quantification of anti-Leishmania antibodies in serum and saliva by a time-resolved immunofluorometric assay is useful for the diagnosis and treatment monitoring of dogs with clinical leishmaniasis. We compared the kinetics of anti-Leishmania IgG2 and IgA antibodies in serum and saliva from 11 Beagle dogs experimentally infected with Leishmania infantum. Most dogs showed detectable concentrations of anti-Leishmania IgG2 earlier in serum (between 3 and 4 months p.i.) than in saliva (between 4 and 6 month...

Diagnostic efficacy of serum anti-phospholipase A2 receptor antibodies for idiopathic membranous nephropathy in patients with diabetic kidney disease.

Serum anti-phospholipase A2 receptor (anti-PLA2R) antibodies are highly accurate in diagnosing idiopathic membranous nephropathy (IMN) in populations with kidney disease. However, the diagnostic value of anti-PLA2R antibodies for IMN in diabetic kidney disease (DKD) is unclear. The objective of this study is to determine the diagnostic efficacy and the optimal cut-off value of this marker in populations with DKD.

Validation of antibodies for the specific detection of human TRPA1.

The transient receptor potential cation channel family member ankyrin 1 (TRPA1) is a potential target for several diseases, but detection of human TRPA1 (hTRPA1) protein in cells and tissues is problematic as rigorous antibody validation is lacking. We expressed hTRPA1 in a TRPA1-negative cell line to evaluate 5 commercially available antibodies by western blotting, immunofluorescence, immunocytochemistry and flow cytometry. The three most cited anti-TRPA1 antibodies lacked sensitivity and/or specificity, b...

Evaluation of the pathogenicity of anti-desmoglein antibodies of pemphigus vulgaris patients using human organ culture assay.

Anti-desmoglein (anti-Dsg) antibodies are key players in the pathogenesis of pemphigus vulgaris (PV) disease. We aimed to evaluate the pathogenicity of anti-Dsg antibodies of PV patients using human organ culture assay and to assess the correlation between the pathogenicity and the disease score. In this cross-sectional study, sera from 37 PV patients were included. The organ culture acantholysis index (OCAI) was calculated as (width of blister/total width of the specimen) × 100. The sera were analyzed...

Intrathecal cytokine profile in neuropathy with anti-neurofascin 155 antibody.

To characterize the CSF cytokine profile in chronic inflammatory demyelinating polyneuropathy (CIDP) patients with IgG4 anti-neurofascin 155 (NF155) antibodies (NF155 CIDP) or those lacking anti-NF155 antibodies (NF155 CIDP).

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