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https://www.readbyqxmd.com/read/29450576/immunopet-imaging-of-cd38-in-murine-lymphoma-models-using-89-zr-labeled-daratumumab
#1
Lei Kang, Dawei Jiang, Christopher G England, Todd E Barnhart, Bo Yu, Zachary T Rosenkrans, Rongfu Wang, Jonathan W Engle, Xiaojie Xu, Peng Huang, Weibo Cai
PURPOSE: CD38 is considered a potential biomarker for multiple myeloma (MM) and has shown a strong link with chronic lymphocytic leukemia due to high and uniform expression on plasma cells. In vivo evaluation of CD38 expression may provide useful information about lesion detection and prognosis of treatment in MM. In this study, immunoPET imaging with 89 Zr-labeled daratumumab was used for differentiation of CD38 expression in murine lymphoma models to provide a potential non-invasive method for monitoring CD38 in the clinic...
February 15, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29449636/structural-elucidation-of-a-polysaccharide-from-flammulina-velutipes-and-its-immunomodulation-activities-on-mouse-b-lymphocytes
#2
Wen-Han Wang, Jing-Song Zhang, Ting Feng, Jing Deng, Chi-Chung Lin, Hua Fan, Wen-Juan Yu, Hai-Ying Bao, Wei Jia
A novel polysaccharide FVPB2 was purified from fruiting bodies of Flammulina velutipes. Its structure was elucidated by monosaccharide composition and methylation analyses, UV-Visible and FTIR spectroscopy as well as NMR. FVPB2 was a homogeneous heteropolysaccharide (molecular weight ~ 1.50 × 10 4 Da) containing D-galactose, D-mannose, L-fucose, and D-glucose at molar ratio of 1.9:1.2:1:2.5. In vitro immunomodulatory studies showed FVPB2 induced proliferation of mouse spleen lymphocytes in a dose-dependent manner...
February 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29447335/condition-dependent-generation-of-aquaporin-4-antibodies-from-circulating-b-cells-in-neuromyelitis-optica
#3
Robert Wilson, Mateusz Makuch, Anne-Kathrin Kienzler, James Varley, Jennifer Taylor, Mark Woodhall, Jacqueline Palace, M Isabel Leite, Patrick Waters, Sarosh R Irani
Autoantibodies to aquaporin-4 (AQP4) are pathogenic in neuromyelitis optica spectrum disorder (NMOSD). However, it is not known which B cells are the major contributors to circulating AQP4 antibodies nor which conditions promote their generation. Our experiments showed CD19+CD27++CD38++ circulating ex vivo antibody-secreting cells did not produce AQP4 antibodies under several culture conditions. To question whether other cells in circulation were capable of AQP4 antibody production, B cells were differentiated into antibody-secreting cells in vitro...
February 13, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29446917/mapping-the-mab-aggregation-propensity-using-self-interaction-chromatography-as-a-screening-tool
#4
Sarah Hedberg, DongKyu Lee, Yash Mishra, Jonathan Haigh, Daryl R Williams
The osmotic second virial coefficients (B 2 ) which describes protein-protein molecular interactions in solution and were de-termined using self-interaction chromatography (SIC) for an IgG type 1 mAb across a wide range of solution conditions. This data was compared with its time dependent aggregation behaviour as determined using size-exclusion chromatography (SEC) and its temperature dependent aggregation behaviour using dynamic light scattering (DLS) over a 4 week period (SEC) or overnight (DLS). DLS and SEC gave consistent data on aggregation behaviour which correlated well with experimental B 2 trends across the wide pH (4-9) and NaCl concentration (0-1...
February 15, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29446525/laboratory-testing-for-factor-viii-and-ix-inhibitors-in-haemophilia-a-review
#5
REVIEW
C H Miller
Inhibitors are antibodies directed against haemophilia treatment products which interfere with their function. Factor VIII (FVIII) inhibitors in haemophilia A and factor IX (FIX) inhibitors in haemophilia B are significant clinically when they require a change in a patient's treatment regimen. Their persistence may increase morbidity and mortality. Multiple laboratory tests are now available for detecting and understanding inhibitors in haemophilia. Inhibitors are traditionally measured by their interference in clotting or chromogenic factor assays...
February 15, 2018: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/29445241/is-early-life-exposure-to-polyomaviruses-and-herpesviruses-associated-with-obesity-indices-and-metabolic-traits-in-childhood
#6
Marianna Karachaliou, Silvia de Sanjose, Tim Waterboer, Theano Roumeliotaki, Maria Vassilaki, Katerina Sarri, Vasiliki Leventakou, Marina Vafeiadi, Georgia Chalkiadaki, Eftichia Stiakaki, Angelika Michel, Michael Pawlita, Manolis Kogevinas, Leda Chatzi
BACKGROUND: Evidence for an infectious origin of obesity is emerging. We explored whether common viruses were associated with obesity and metabolic traits. METHODS: We used cross-sectional (n = 674) and prospective (n = 440) data from children participating at the 4 and 6 years of age follow-up in the Rhea birth cohort. Presence of IgG antibodies to ten polyomaviruses (BKPyV, JCPyV, KIPyV, WUPyV, HPyV6, HPyV7, TSPyV, MCPyV, HPyV9, and HPyV10) and four herpesviruses (EBV, CMV, HSV-1, and HSV-2) were measured at age 4...
January 30, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29442455/oral-mucositis-and-saliva-iga-igg-and-igm-concentration-during-anti-tumor-treatment-in-children-suffering-from-acute-lymphoblastic-leukemia
#7
Elżbieta J Pels
BACKGROUND: Oral mucositis is a problem occurring within the oral cavity, which is the most difficult to deal with during anti-tumor treatment. The first symptom reported by the patient is discomfort. Salivary immunoglobulins play an important role in pathological processes occurring in the oral cavity. OBJECTIVES: The study objective was to assess the occurrence of oral mucositis and to assess changes in the saliva IgA, IgG, and IgM concentration in children with acute lymphoblastic leukemia during antitumor treatment...
December 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29439708/possible-relationship-between-fibrosis-of-igg4-related-thymitis-and-the-profibrotic-cytokines-transforming-growth-factor-beta-1-interleukin-1-beta-and-interferon-gamma-a-case-report
#8
Atsuko Masunaga, Fumihiro Ishibashi, Eitetsu Koh, Takashi Oide, Yasuo Sekine, Kenzo Hiroshima
BACKGROUND: IgG4-related disease often forms a mass and the affected lesion is clinically removed because the mass cannot be differentiated from a neoplasm. Affected lesions commonly occur in the pancreas, hepatobiliary tract, kidney, and retroperitoneum. However, the lesion rarely occurs in the thymus. A histological worldwide consensus of IgG4-related disease proposed that pathological diagnosis of IgG4-related disease should meet more than two of three major features: 1) dense lymphoplasmacytic infiltration with greater than 40% IgG4+/IgG+ plasma cells, 2) storiform fibrosis; and 3) obliterative phlebitis...
January 17, 2018: Diagnostic Pathology
https://www.readbyqxmd.com/read/29437186/evaluation-of-igg4-plasma-cell-infiltration-in-patients-with-systemic-plasmacytosis-and-other-plasma-cell-infiltrating-skin-diseases
#9
Shintaro Takeoka, Masahiro Kamata, Carren Sy Hau, Mihoko Tateishi, Saki Fukaya, Kotaro Hayashi, Atsuko Fukuyasu, Takamitsu Tanaka, Takeko Ishikawa, Takamitsu Ohnishi, Yuko Sasajima, Shinichi Watanabe, Yayoi Tada
Systemic plasmacytosis is a rare skin disorder characterized by marked infiltration of plasma cells in the dermis. IgG4-related disease is pathologically characterized by lymphoplasmacytic infiltration rich in IgG4+ plasma cells, storiform fibrosis, and obliterative phlebitis, accompanied by elevated levels of serum IgG4. Reports of cases of systemic plasmacytosis with abundant infiltration of IgG4+ plasma cells has led to discussion about the relationship between systemic plasmacytosis and IgG4-related disease...
February 13, 2018: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29436318/chickenpox-outbreak-in-a-tribal-and-industrial-zone-from-the-union-territory-of-dadra-and-nagar-haveli-india
#10
S R Vaidya, S M Tilavat, N S Kumbhar, M B Kamble
During 9th December 2016 and 12th February 2017, 149-chickenpox cases were reported in a tribal and industrial zone of Rakholi (n = 80) and Surangi (n = 69) villages from Union Territory of India. An epidemiological investigation was performed to assess the characteristics and determinants of the chickenpox outbreak. Overall, the attack rate per 100 population in Rakholi village (n = 1757) was 4.5% and 19.1% in Surangi village (n = 360). Ages of the cases were ranged from 6 months to 55 years and there were 53 females and 96 males...
February 13, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29435020/analysis-of-the-effect-of-laparoscopy-and-hysteroscopy-on-ovarian-function-immune-function-and-quality-of-sexual-life-of-patients-with-hysteromyoma-at-different-ages
#11
Yuxue Zhang, Xiaoli Gu, Yuejin Meng, Haizhou Guo, Jiehua Du, Wei Xing
This study aims to comparatively analyze the impact of laparoscopic myomectomy (LM) and transcervical resection of myoma (TCRM) on ovarian function, immune function and quality of sexual life of patients with hysteromyoma. Two hundred and forty patients with hysteromyoma admitted into the Second Affiliated Hospital of Zhengzhou University from June 2014 to June 2016 were divided into laparoscopic myomectomy group (LM group, n=120) and transcervical resection of myoma group (TCRM group, n=120) according to random figure table...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29434730/clinical-and-pathological-characteristics-of-igg4-related-interstitial-lung-disease
#12
Xiaoting Lv, Feng Gao, Qicai Liu, Sheng Zhang, Zhihua Huang, Yongping Zhu, Haiyang Zong, Quwen Li, Sanyan Li
IgG4-related interstitial lung disease (IgG4-RILD), which is characterized by increased IgG4 levels, IgG4+ plasma cell infiltration and irregular whorled fibrosis, is a recently described lung disorder that belongs to the group of systemic fibroinflammatory IgG4-related diseases (IgG4-RD). The aim of the present study was to improve the current knowledge regarding the specific clinical and histopathological characteristics of IgG4-RILD and to investigate its underlying immune mechanism in vivo. A total of 7 patients newly diagnosed with IgG4-RILD were enrolled in the present study (4 men and 3 women; mean age, 57 years; range, 29-71 years)...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29434649/occupational-exposure-to-ultrafine-particles-in-police-officers-no-evidence-for-adverse-respiratory-effects
#13
G Jordakieva, I Grabovac, E Valic, K E Schmidt, A Graff, A Schuster, K Hoffmann-Sommergruber, C Oberhuber, O Scheiner, A Goll, J Godnic-Cvar
Background: Inhalation exposure to fine and ultrafine particles (UFPs) has been associated with respiratory diseases. However, little is known on the quality, threshold levels and concentration of these particles causing adverse health effects. Methods: The impact of occupational exposure to submicrometer and UFPs was assessed in 30 healthy police shooting instructors by clinical investigation, self-assessment questionnaire, sputum and spirometry and compared to a control group...
2018: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/29434451/impaired-granulocyte-macrophage-colony-stimulating-factor-bioactivity-accelerates-surgical-recurrence-in-ileal-crohn-s-disease
#14
Grace Gathungu, Yuanhao Zhang, Xinyu Tian, Erin Bonkowski, Leahana Rowehl, Julia Krumsiek, Billy Nix, Claudia Chalk, Bruce Trapnell, Wei Zhu, Rodney Newberry, Lee Denson, Ellen Li
AIM: To examine the relationship between elevated granulocyte-macrophage colony-stimulating factor (GM-CSF) auto-antibodies (Ab) level and time to surgical recurrence after initial surgery for Crohn's disease (CD). METHODS: We reviewed 412 charts from a clinical database at tertiary academic hospital. Patients included in the study had ileal or ileocolonic CD and surgical resection of small bowel or ileocecal region for management of disease. Serum samples were analyzed for serological assays including GM-CSF cytokine, GM-CSF Ab, ASCA IgG and IgA, and genetic markers including SNPs rs2066843, rs2066844, rs2066845, rs2076756 and rs2066847 in NOD2, rs2241880 in ATG16L1, and rs13361189 in IRGM...
February 7, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29434001/validation-and-implementation-of-planova%C3%A2-bioex-virus-filters-in-the-manufacture-of-a-new-liquid-intravenous-immunoglobulin-in-china
#15
Shan Ma, Guang Li Pang, Yu Juan Shao, Tomoko Hongo-Hirasaki, Meng Xian Shang, Marcus Inouye, Chang Yong Jian, Meng Zhao Zhu, Hu Hu Yang, Jian Feng Gao, Zhi Ying Xi, Dian Wei Song
There is a continuous need to improve the viral safety of plasma products, and we here report the development and optimization of a manufacturing-scale virus removal nanofiltration step for intravenous immunoglobulin (IVIG) using the recently introduced Planova™ BioEX filter. IVIG throughput was examined for various operating parameters: transmembrane pressure, temperature, protein concentration, and prefiltration methods. The developed procedure was based on filtering undiluted process solution (50.0 g/l IVIG) under constant transmembrane pressure filtration at 294 kPa and 25 °C following prefiltration with a 0...
February 9, 2018: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/29433066/immuno-profiles-of-balb-c-mice-inoculated-with-salmonella-vector-delivering-b-cell-mitogen-hydroxyproline-epimerase
#16
Jonathan Lalsiamthara, John Hwa Lee
The enzyme 4-hydroxyproline 2-epimerase (PrpA) involves in modulation of host immunity and is also reported as a potent B-cell mitogen. Live attenuated Salmonella Typhimurium (ST) vector constitutively expressing heterologous Brucella abortus PrpA protein (ST-PrpA) was inoculated in BALB/c mice in order to investigate the influence of the enzyme, on safety aspects, humoral and cellular immunity as well as protective efficacies against wild type challenges. No aggravation of morbidity was observed upon mice inoculation of ST-PrpA...
February 9, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29432051/immunogenicity-and-persistence-of-a-prime-boost-re-vaccination-strategy-for-pneumococcal-vaccines-in-patients-with-rheumatoid-arthritis
#17
Mathilde Bahuaud, Constance Beaudouin-Bazire, Marine Husson, Anna Molto, Odile Launay, Frédéric Batteux, Maxime Dougados
OBJECTIVES: Patients with rheumatoid arthritis (RA) are at an increased risk of Pneumococcal infections. Immunogenicity and persistence of a prime-boost revaccination strategy using 13-valent/23-valent anti-pneumococcal vaccines was evaluated in patients with RA treated by Methotrexate (MTX) and anti-TNF. METHOD: Twenty-four patients with RA received one dose of PCV13 (Prevenar13ࣨ; Pfizer) followed two months later by one dose of PPV23 (Pneumovax®, Merck). Concentrations of IgG specific for 7 serotypes common to both vaccines and 3 uncommon serotypes, included only in the PPV23 were measured by ELISA and Opsonophagocytic Assay (OPA) at baseline and after 4, 12 and 24 months post-vaccine...
February 12, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29431301/seroepidemiological-study-of-epstein-barr-virus-in-different-population-groups-in-croatia
#18
Nataša Beader, Branko Kolarić, Domagoj Slačanac, Irena Tabain, Tatjana Vilibić-Čavlek
BACKGROUND: The Epstein-Barr virus (EBV) is one of the most common viruses found in humans, causing lifelong infection in up to 95% of the world population. OBJECTIVES: To analyze the seroprevalence of EBV infection in different population groups in Croatia. METHODS: During a 2 year period (2015-2016), a total of 2022 consecutive serum samples collected from Croatian residents were tested for the presence of EBV-specific viral capsid antigen (VCA) immunoglobulin M (IgM) and IgG antibodies using an enzyme-linked immunoassay...
February 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29430682/enolase-1-expression-in-the-stratum-corneum-is-elevated-with-parakeratosis-of-atopic-dermatitis-and-disrupts-the-cellular-tight-junction-barrier-in-keratinocytes
#19
Takeshi Tohgasaki, Naoko Ozawa, Takashi Yoshino, Shioji Ishiwatari, Shoko Matsukuma, Shigeru Yanagi, Hidetsugu Fukuda
OBJECTIVE: Previous studies have shown that enolase-1 (ENO1) in the stratum corneum (SC) is more highly expressed in patients with atopic dermatitis (AD) than in healthy individuals, suggesting that it is a novel biomarker for evaluating skin condition in patients with AD. However, the mechanism underlying high ENO1 expression in the SC and its pathological relevance in AD are unclear. In this study, the relationship between ENO1 expression and keratinization of epidermis was investigated and the role of high ENO1 expression in keratinocytes was characterized...
February 11, 2018: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/29429330/ferritin-nanocages-with-biologically-orthogonal-conjugation-for-vascular-targeting-and-imaging
#20
Makan Khoshnejad, Colin Fred Greineder, Katherine W Pulsipher, Carlos H Villa, Burcin Altun, Daniel C Pan, Andrew Tsourkas, Ivan J Dmochowski, Vladimir Muzykantov
Genetic incorporation of biologically orthogonal functional groups into macromolecules has the potential to yield efficient, controlled, reproducible, site-specific conjugation of affinity ligands, contrast agents, or therapeutic cargoes. Here, we applied this approach to ferritin, a ubiquitous iron-storage protein that self-assembles into multimeric nanocages with remarkable stability, size uniformity (12 nm), and endogenous capacity for loading and transport of a variety of inorganic and organic cargoes. The unnatural amino acid, 4-azidophenylalanine (4-AzF), was incorporated at different sites in the human ferritin light chain (hFTL) to allow site-specific conjugation of alkyne-containing small molecules or affinity ligands to the exterior surface of the nanocage...
February 10, 2018: Bioconjugate Chemistry
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