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Cancer autoantibody

Ingrid Broodman, Jan Lindemans, Jenny van Sten, Rainer Bischoff, Theo M Luider
Lung cancer has the highest mortality rate among cancer patients in the world, in particular because most patients are only diagnosed at an advanced and non-curable stage. Computed tomography (CT) screening on high-risk individuals has shown that early detection could reduce the mortality rate. However, the still high false-positive rate of CT screening may harm healthy individuals because of unnecessary follow-up scans and invasive follow-up procedures. Alternatively, false-negative and indeterminate results may harm patients due to the delayed diagnosis and treatment of lung cancer...
October 21, 2016: Journal of Proteome Research
Angela Ceribelli, Natasa Isailovic, Maria De Santis, Elena Generali, Micaela Fredi, Ilaria Cavazzana, Franco Franceschini, Luca Cantarini, Minoru Satoh, Carlo Selmi
This study aims to characterize myositis-specific antibodies in a well-defined cohort of patients with idiopathic inflammatory myopathy and to determine their association with cancer. Sera from 40 patients with polymyositis, dermatomyositis, and controls were tested by protein and RNA immunoprecipitation to detect autoantibodies, and immunoprecipitation-Western blot was used for anti-MJ/NXP-2, anti-MDA5, and anti-TIF1γ/α identification. Medical records were re-evaluated with specific focus on cancer. Anti-MJ/NXP-2 and anti-TIF1γ/α were the most common antibodies in dermatomyositis...
October 20, 2016: Clinical Rheumatology
Masato Kadoya, Ayumi Hida, Meiko Hashimoto Maeda, Kenichiro Taira, Chiseko Ikenaga, Naohiro Uchio, Akatsuki Kubota, Kenichi Kaida, Yusuke Miwa, Kazuhiro Kurasawa, Hiroyuki Shimada, Masahiro Sonoo, Atsuro Chiba, Yasushi Shiio, Yoshikazu Uesaka, Yasuhisa Sakurai, Toru Izumi, Manami Inoue, Shin Kwak, Shoji Tsuji, Jun Shimizu
OBJECTIVE: To show cancer association is a risk factor other than statin exposure for anti-3-hydroxy-3-methylglutaryl coenzyme A reductase autoantibody-positive (anti-HMGCR Ab+) myopathy. METHODS: We analyzed the clinical features and courses of 33 patients (23 female and 10 male) with anti-HMGCR Ab+ myopathy among 621 consecutive patients with idiopathic inflammatory myopathies. RESULTS: Among the 33 patients, 7 (21%) were statin-exposed and 26 were statin-naive...
December 2016: Neurology® Neuroimmunology & Neuroinflammation
Sohei Kobayashi, Tyuji Hoshino, Takaki Hiwasa, Mamoru Satoh, Bahityar Rahmutulla, Sachio Tsuchida, Yuji Komukai, Tomoaki Tanaka, Hisahiro Matsubara, Hideaki Shimada, Fumio Nomura, Kazuyuki Matsushita
Anti-PUF60, poly(U)-binding-splicing factor, autoantibodies are reported to be detected in the sera of dermatomyositis and Sjogren's syndrome that occasionally associated with malignancies. PUF60 is identical with far-upstream element-binding protein-interacting repressor (FIR) that is a transcriptional repressor of c-myc gene. In colorectal cancers, a splicing variant of FIR that lacks exon2 (FIRΔexon2) is overexpressed as a dominant negative form of FIR. In this study, to reveal the presence and the significance of anti-FIRs (FIR/FIRΔexon2) antibodies in cancers were explored in the sera of colorectal and other cancer patients...
October 15, 2016: Oncotarget
N García-Fernández, Hada C Macher, Amalia Rubio, Pilar Jiménez-Arriscado, C Bernal-Bellido, M L Bellido-Díaz, G Suárez-Artacho, Juan M Guerrero, M A Gómez-Bravo, Patrocinio Molinero
p53 is the most commonly mutated gene in malignant human cancers. To detect p53 mutations in circulating DNA (cirDNA) of transplanted hepatocellular carcinoma (HCC) patients could be an interesting approach to know of any tumor recurrence. In this study, our objective was to determine the utility of this method in the diagnosis and the prognosis of HCC tumor recurrence.Twenty four liver transplanted HCC patients were included in the study together with a group of healthy controls. Detection of the specific p53 mutation in cirDNA was performed by high-resolution melting PCR (HRM-PCR) and COLD-PCR immediately before the transplantation...
2016: Advances in Experimental Medicine and Biology
Tino W Sanchez, Guangyu Zhang, Jitian Li, Liping Dai, Saied Mirshahidi, Nathan R Wall, Clayton Yates, Colwick Wilson, Susanne Montgomery, Jian-Ying Zhang, Carlos A Casiano
African American (AA) men suffer from a disproportionately high incidence and mortality of prostate cancer (PCa) compared to other racial/ethnic groups. Despite these disparities, African American men are underrepresented in clinical trials and in studies on PCa biology and biomarker discovery. We used immunoseroproteomics to profile anti-tumor autoantibody responses in AA and European American (EA) men with PCa, and explored differences in these responses. This minimally invasive approach detects autoantibodies to tumor-associated antigens that could serve as clinical biomarkers and immunotherapeutic agents...
October 14, 2016: Molecular & Cellular Proteomics: MCP
Kosei Nakajima, Lance K Heilbrun, Daryn Smith, Victor Hogan, Avraham Raz, Elisabeth Heath
The U.S. Preventive Services Task Force (USPSTF) has recommended against PSA-based screening for prostate cancer due to potential possibilities of false-results. Since no alternative test is available to replace it, we have initiated a trial with the purpose of establishing whether Galectin-3 (Gal-3) serum level and/or the patients' immune response to PSA and Gal-3 antigens could complement the PSA test as diagnostic tools for prostate cancer patients. A blind, prospective, single institution, pilot study was conducted...
October 12, 2016: Oncotarget
Kosei Nakajima, Lance K Heilbrun, Victor Hogan, Daryn Smith, Elisabeth Heath, Avraham Raz
Galectin-3 (Gal-3), an oncogenic pro-inflammatory protein, has been suggested as a possible complementary diagnostic candidate to prostate specific antigen (PSA) blood test for prostate cancer patients. The presence of the proteins in the circulation (biomarkers) may elicit an intrinsic humoral immune reaction by generating autoantibodies, which consequently could alter the detection levels. Here, we report the associations of the two prostate cancer biomarkers, Gal-3 and PSA in patients at different clinical states of prostate cancer while taking into account the autoantibody levels...
October 12, 2016: Oncotarget
Mario A Pulido, Meleeneh Kazarian DerHartunian, Zhenxia Qin, Eric M Chung, Diane S Kang, Andrew W Woodham, Jeffrey A Tsou, Rinse Klooster, Omid Akbari, Lina Wang, W Martin Kast, Stephen V Liu, Jan J G M Verschuuren, Dana W Aswad, Ite A Laird-Offringa
Autoantibodies against SCLC-associated neuronal antigen ELAVL4 (HuD) have been linked to smaller tumors and improved survival, but the antigenic epitope and mechanism of autoimmunity have never been solved. We report that recombinant human ELAVL4 protein incubated under physiological conditions acquires isoaspartylation, a type of immunogenic protein damage. Specifically, the N-terminal region of ELAVL4, previously implicated in SCLC-associated autoimmunity, undergoes isoaspartylation in vitro, is recognized by sera from anti-ELAVL4 positive SCLC patients and is highly immunogenic in subcutaneously injected mice and in vitro stimulated human lymphocytes...
October 15, 2016: Journal of Neuroimmunology
Xiao Liu, Haihong Qin, Jinhua Xu
Autophagy is a highly conserved catabolic process, whereby unwanted cytoplasmic contents are enclosed by the double-membrane autophagosomes and delivered to the lysosomes for degradation. It is responsible for the recycling of nutrients and cellular components, thus playing a pivotal role in maintaining cellular homeostasis as well as cell survival during stress conditions. Perturbations in autophagy are implicated in multiple diseases, such as cancers and neuro-degeneration diseases. Recent studies demonstrate that autophagy may participate in almost every step of immune responses, including pathogen recognition, antigen processing and presentation, immune cell development and function, and immunoregulation...
September 24, 2016: International Immunopharmacology
Humberto Choi, Vikram Puvenna, Chanda Brennan, Shamseldeen Mahmoud, Xiao-Feng Wang, Michael Phillips, Damir Janigro, Peter Mazzone
BACKGROUND: S100B is an astrocytic protein that enters the blood stream when there is disruption of the blood-brain barrier (BBB). Over time, antibodies against S100B develop in the sera of patients who experience persistent or repeated BBB disruptions. We explored the use of serum S100B protein and S100B autoantibodies for the detection of brain metastasis in patients with lung cancer. METHODS: One hundred and twenty eight untreated patients with lung cancer who had brain imaging performed as part of their routine evaluation, participated...
August 2016: Translational Lung Cancer Research
Jenny Linnoila, Sean J Pittock
Autoimmune neurology is a rapidly evolving new subspecialty driven by the discovery of novel neural- (neuronal- or glial-) specific autoantibodies and their target antigens. The neurologic manifestations affecting the central nervous system include encephalitis, dementia, epilepsy, and movement and sleep disorders. Laboratory testing is now available for most of these neural-specific autoantibodies, which serve as diagnostic markers, in some instances directing the physician toward specific cancer types (e...
August 2016: Seminars in Neurology
Asmaa Drissi Bourhanbour, Sanae Ouadghiri, Nadia Benseffaj, Malika Essakalli
Celiac disease (CD) is an autoimmune disease frequently associated with type 1 diabetes (T1D). The prevalence of CD in patients with T1D varies from 3 to 6%. The clinical manifestation of CD in patients with T1D is classified as asymptomatic in about half of cases. Our study aims to determine the frequency of anti-tissue transglutaminase autoantibodies (IgA-tTG) and anti-gliadin antibodies (AGA) in patients with type 1 diabetes in order to early recommend jejunal biopsy and establish a gluten-free diet before the onset of clinical signs and complications of celiac disease...
2016: Pan African Medical Journal
Jung-Rok Lee, D James Haddon, Nidhi Gupta, Jordan V Price, Grace M Credo, Vivian K Diep, Kyunglok Kim, Drew A Hall, Emily C Baechler, Michelle Petri, Madoo Varma, Paul J Utz, Shan X Wang
Autoantibodies are a hallmark of autoimmune diseases such as lupus and have the potential to be used as biomarkers for diverse diseases, including immunodeficiency, infectious disease, and cancer. More precise detection of antibodies to specific targets is needed to improve diagnosis of such diseases. Here, we report the development of reusable peptide microarrays, based on giant magnetoresistive (GMR) nanosensors optimized for sensitively detecting magnetic nanoparticle labels, for the detection of antibodies with a resolution of a single post-translationally modified amino acid...
September 16, 2016: ACS Nano
Joshua Mandrell, Christina L Kranc
Levamisole is an immunomodulatory drug that was previously used to treat various medical conditions, including parasitic infections, nephrotic syndrome, and colorectal cancer. Over the last few years, increasing amounts of levamisole have been used as an adulterant in cocaine. Levamisole-cut cocaine has become a concern because it is known to cause a necrotizing purpuric rash, autoantibody production, and life-threatening leukopenia. Mixed histologic findings of vasculitis and thrombosis are characteristic of levamisole-induced purpura...
August 2016: Cutis; Cutaneous Medicine for the Practitioner
Boyan Fang, Andrew McKeon, Shannon R Hinson, Thomas J Kryzer, Sean J Pittock, Allen J Aksamit, Vanda A Lennon
Importance: A novel astrocytic autoantibody has been identified as a biomarker of a relapsing autoimmune meningoencephalomyelitis that is immunotherapy responsive. Seropositivity distinguishes autoimmune glial fibrillary acidic protein (GFAP) meningoencephalomyelitis from disorders commonly considered in the differential diagnosis. Objective: To describe a novel IgG autoantibody found in serum or cerebrospinal fluid that is specific for a cytosolic intermediate filament protein of astrocytes...
September 12, 2016: JAMA Neurology
Pierre P Massion, Graham F Healey, Laura J Peek, Lynn Fredericks, Herb F Sewell, Andrea Murray, John F R Robertson
INTRODUCTION: The incidence of pulmonary nodules is increasing with the movement toward screening for lung cancer by low-dose computed tomography. Given the large number of benign nodules detected by computed tomography, an adjunctive test capable of distinguishing malignant from benign nodules would benefit practitioners. The ability of the EarlyCDT-Lung blood test (Oncimmune Ltd., Nottingham, United Kingdom) to make this distinction by measuring autoantibodies to seven tumor-associated antigens was evaluated in a prospective registry...
September 8, 2016: Journal of Thoracic Oncology
Chirag Sheth, Amandeep Gill, Sumeet Sekhon
Acquired factor VIII deficiency (acquired hemophilia A) is a rare condition characterized by the acquisition of autoantibodies that affect the clotting activity of factor VIII (fVIII). The most common manifestation in affected patients is a hemorrhagic diathesis. This disorder is associated with autoimmune diseases, pregnancy, postpartum period, drugs, and malignancy. Management of this condition begins with attempts to arrest an acute bleed based on the site and severity of bleeding and inhibitor titer. The next priority is eradication of the fVIII antibodies using immunosuppressive therapies...
2016: Journal of Community Hospital Internal Medicine Perspectives
Zeynep Özözen Ayas, Dilcan Kotan, Yeşim Güzey Aras
INTRODUCTION: Autoimmune neurological syndrome is a group of disorders caused by cancer affecting nervous system by different immunological mechanisms. In this study, we aim to study the clinical symptoms, cerebrospinal fluid (CSF) findings, autoantibody tests, computed tomography (CT), magnetic resonance imaging (MRI) signs and treatment outcome of patients with autoimmune syndromes. METHODS: In this study, 7 patients (4 male, 3 female) diagnosed with autoimmune neurological syndrome were retrospectively examined...
October 6, 2016: Neuroscience Letters
Mahdy Ranjbar, Armin Mohi, Claudia Pföhler, Salvatore Grisanti, Martin Rudolf
INTRODUCTION: Cutaneous melanoma (CM) is an aggressive skin cancer entity, causing most skin cancer-related deaths. Autoimmune disorders have been described as potential paraneoplastic complications. The purpose of this study was to elucidate the possibility of a combinatory paraneoplastic affection of the retina and cochlea in patients with CM. METHODS: Sera samples from CM patients were used for indirect immunofluorescence on histological retinal and cochlear sections...
September 1, 2016: Dermatology and Therapy
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