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https://www.readbyqxmd.com/read/28522741/impact-of-ga-68-psma-11-pet-on-management-in-patients-with-biochemically-recurrent-prostate-cancer
#1
Thomas A Hope, Rahul Aggarwal, Bryant Chee, Dora Tao, Kirsten L Greene, Matthew Cooperberg, Felix Feng, Albert Chang, Charles J Ryan, Eric J Small, Peter R Carroll
Purpose: The purpose of this prospective study was to estimate the effect of (68)Ga-prostate specific membrane antigen (PSMA)-11 PET on intended management of patients with biochemically recurrent prostate cancer. Methods: Pre- and post-imaging surveys were filled out by referring providers in patients with biochemical recurrence who were imaged using (68)Ga-PSMA-11 PET. Inclusion criteria for this study required a PSA doubling time of less than 12 months after initial treatment (NCT02611882). Of the 150 consecutive patients imaged, 126 surveys were completed (84% response rate)...
May 18, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28514659/the-intergenic-recombinant-hla-b%C3%A2-46-01-has-a-distinctive-peptidome-that-includes-kir2dl3-ligands
#2
Hugo G Hilton, Curtis P McMurtrey, Alex S Han, Zakia Djaoud, Lisbeth A Guethlein, Jeroen H Blokhuis, Jason L Pugh, Ana Goyos, Amir Horowitz, Rico Buchli, Ken W Jackson, Wilfred Bardet, David A Bushnell, Philip J Robinson, Juan L Mendoza, Michael E Birnbaum, Morten Nielsen, K Christopher Garcia, William H Hildebrand, Peter Parham
HLA-B(∗)46:01 was formed by an intergenic mini-conversion, between HLA-B(∗)15:01 and HLA-C(∗)01:02, in Southeast Asia during the last 50,000 years, and it has since become the most common HLA-B allele in the region. A functional effect of the mini-conversion was introduction of the C1 epitope into HLA-B(∗)46:01, making it an exceptional HLA-B allotype that is recognized by the C1-specific natural killer (NK) cell receptor KIR2DL3. High-resolution mass spectrometry showed that HLA-B(∗)46:01 has a low-diversity peptidome that is distinct from those of its parents...
May 16, 2017: Cell Reports
https://www.readbyqxmd.com/read/28503405/nanoparticle-design-strategies-for-effective-cancer-immunotherapy
#3
Praveena Velpurisiva, Aniket Gad, Brandon Piel, Rahul Jadia, Prakash Rai
Cancer immunotherapy is a rapidly evolving and paradigm shifting treatment modality that adds a strong tool to the collective cancer treatment arsenal. It can be effective even for late stage diagnoses and has already received clinical approval. Tumors are known to not only avoid immune surveillance but also exploit the immune system to continue local tumor growth and metastasis. Because of this, most immunotherapies, particularly those directed against solid cancers, have thus far only benefited a small minority of patients...
2017: J Biomed (Syd)
https://www.readbyqxmd.com/read/28481943/citrullination-only-infrequently-impacts-peptide-binding-to-hla-class-ii-mhc
#4
John Sidney, Stephane Becart, Mimi Zhou, Karen Duffy, Mikaela Lindvall, Erin C Moore, Eugene L Moore, Tadimeti Rao, Navin Rao, Morten Nielsen, Bjoern Peters, Alessandro Sette
It has been hypothesized that HLA class II alleles associated with rheumatoid arthritis (RA) preferentially present self-antigens altered by post-translational modification, such as citrullination. To understand the role of citrullination we tested four RA-associated citrullinated epitopes and their corresponding wild-type version for binding to 28 common HLA class II. Binding patterns were variable, and no consistent impact of citrullination was identified. Indeed, in one case citrullination significantly increased binding compared to the WT peptide, in another citrullination was associated with a reduction in promiscuity by 40%...
2017: PloS One
https://www.readbyqxmd.com/read/28479095/delivery-of-immunoreactive-antigen-using-a-controllable-needle-free-jet-injector
#5
N Catherine Hogan, Melis N Anahtar, Andrew J Taberner, Ian W Hunter
Intradermal immunization of mice against hepatitis B surface antigen (HBsAg) using a novel real-time controlled jet injector was assessed by comparison with intradermal and subcutaneous injection of antigen using a 27G needle and syringe. Three doses of aluminium-absorbed HBsAg were delivered at 0, 14, and 28days. Antibodies to HBsAg were detected only in mice injected with antigen with antibody levels increasing with secondary injections. Mice vaccinated by intradermal injection using the jet injector or subcutaneous needle injection exhibited comparable immune responses at day 47...
May 4, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28468877/preservation-of-peripheral-t-follicular-helper-cell-function-in-hiv-controllers
#6
Supranee Buranapraditkun, Franco Pissani, Jeffrey E Teigler, Bruce T Schultz, Galit Alter, Mary Marovich, Merlin L Robb, Michael A Eller, Jeff Martin, Steven Deeks, Nelson L Michael, Hendrik Streeck
The maturation process of high-affinity antibodies is a result of intricate interactions between B cells and follicular helper T (Tfh) cells occurring in lymphoid germinal centers. HIV infection induces significant chronic immune activation, phenotypic skewing, and inflammation driven by years of continuous viral replication. High levels of viremia as well as immune activation and dysfunction have been demonstrated to have a perturbing impact on the B cell memory compartment and contribute to B cell exhaustion...
May 3, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28450662/comparative-serological-investigation-between-cat-and-tiger-blood-for-transfusion
#7
Naris Thengchaisri, Chayakrit Sinthusingha, Surapong Arthitwong, Panpicha Sattasathuchana
Evidence suggests that non-domesticated felids inherited the same AB-erythrocyte antigens as domestic cats. To study the possible compatibility of tiger blood with that of other endangered felidae, blood samples from captive tigers and domestic cats were subjected to in vitro study. The objectives of this study were to (1) identify whether the captive tigers had blood type AB and (2) determine the compatibility between the blood of captive tigers and that of domestic cats with a similar blood type. The anti-coagulated blood with ethylenediaminetetraacetic acid of 30 tigers was examined to determine blood type, and a crossmatching test was performed between tiger and cat blood...
April 28, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28446307/-effect-of-abo-incompatibility-on-outcome-of-allogeneic-hematopoietic-stem-cell-transplantation
#8
Bing-Bing Yang, Yi-Feng Gan, Peng Chen, Yi Chen, Kang Yu
OBJECTIVE: To investigate the effect of ABO-incompatibility on the efficacy and complications of allogeneic hematopoietic stem cell transplantation(HSCT). METHODS: The clinical data of 54 recipients who received ABO-incompatible allo-HSCT were retrospectively analyzed and were compared with 54 ABO-identical recipients as controls. Hematopoietic reconstruction and the blood type conversion time were dynamically observed and compared between 2 groups. RESULTS: The time of erythrocyte reconstitution was prolonged to 24 d in ABO-incompatible group, compared with that of 19 d in ABO-compatible group (P<0...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28445282/a-case-report-of-sj%C3%A3-gren-syndrome-manifesting-bilateral-basal-ganglia-lesions
#9
Bing Niu, Zhenzhen Zou, Yuqin Shen, Bingzhen Cao
RATIONALE: Peripheral neurological complications in primary Sjögren's syndrome (pSS) seem the most common, however the involvement of central nervous system (CNS) remains unclear. While abnormalities in pSS revealed by brain magnetic resonance imaging (MRI) are usually small discrete hyperintense areas in the white matter on T2-FLAIR weighted MRI, massive brain lesions have been rarely reported, particularly in bilateral basal ganglia. PATIENT CONCERNS: A 51-year-old woman exhibited dizziness, slurred speech and hemiplegia as a manifestation of pSS...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444735/from-genetic-single-candidate-gene-studies-to-complex-genomics-of-gvhd
#10
REVIEW
Katarzyna Bogunia-Kubik, Piotr Łacina
Graft-versus-host disease (GvHD) is a serious complication affecting the recipients of allogeneic haematopoietic stem cells. In this present review we attempt to summarize the current knowledge on the effect of the donor and recipient genotypes on GvHD, starting from human leucocyte antigen (HLA) matching for an optimal donor selection, typing of non-classical HLA and minor histocompatibility antigens through the polymorphic variations in genes coding for non-HLA proteins contributing to the development of GvHD and response to treatment...
April 26, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28440324/lutetium-177-labelled-anti-prostate-specific-membrane-antigen-antibody-and-ligands-for-the-treatment-of-metastatic-castrate-resistant-prostate-cancer-a-systematic-review-and-meta-analysis
#11
R J S Calopedos, V Chalasani, R Asher, L Emmett, H H Woo
BACKGROUND: Promising therapeutic results of the prostate-specific membrane antigen (PSMA) ligand have been shown when labelling with lutetium-177 ((177)Lu). We performed a systematic review and meta-analysis to assess the therapeutic response of (177)Lu-PSMA in the treatment of metastatic castration-resistant prostate cancer (mCRPC). METHODS: A systematic review was conducted using electronic databases up to December 2016. Two reviewers independently extracted data and assessed methodological quality...
April 25, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28421078/genetic-association-of-hematopoietic-stem-cell-transplantation-outcome-beyond-histocompatibility-genes
#12
REVIEW
Rihab Gam, Pranali Shah, Rachel E Crossland, Jean Norden, Anne M Dickinson, Ralf Dressel
The outcome of hematopoietic stem cell transplantation (HSCT) is controlled by genetic factors among which the leukocyte antigen human leukocyte antigen (HLA) matching is most important. In addition, minor histocompatibility antigens and non-HLA gene polymorphisms in genes controlling immune responses are known to contribute to the risks associated with HSCT. Besides single-nucleotide polymorphisms (SNPs) in protein coding genes, SNPs in regulatory elements such as microRNAs (miRNAs) contribute to these genetic risks...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28417176/functional-gold-nanoparticles-for-optical-affinity-biosensing
#13
Tomáš Špringer, Xue Chadtová Song, Maria Laura Ermini, Josefína Lamačová, Jiří Homola
Functional gold nanoparticles (AuNPs) are commonly used to enhance the response of optical affinity biosensors. In this work, we investigated the effect of preparation conditions on functional properties of AuNPs functionalized with antibody (Ab-AuNPs), specifically AuNPs with antibody against carcinoembryonic antigen (CEA) covalently attached via carboxy-terminated oligo-ethylene thiolate linker layer. The following parameters of preparation of Ab-AuNP have been found to have a significant effect on Ab-AuNP performance in affinity biosensors: the time of reaction of activated AuNPs with antibody, concentrations of antibody and amino-coupling reagents, and composition of immobilization buffer (molarity and salt content)...
April 17, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28412139/comparative-effectiveness-research-the-impact-of-biologic-agents-in-ethnic-minorities-with-metastatic-colorectal-cancer
#14
Sanjay Goel, Abdissa Negassa, Ashish Khot, Dharmendra Goyal, Shuang Guo, Amara Nandikolla, Kamila Bakirhan, Rahul Polineni, Umang Shah, Imran Chaudhary, Mohammad H Ghalib, Lakshmi Rajdev, Andreas Kaubisch, Jennifer Chuy, Santiago Aparo
BACKGROUND: Biologic agents have improved the outcomes of patients with metastatic colorectal cancer (mCRC). However, the clinical trials included a predominately white population (85%), with Hispanic and black patients underrepresented. Thus, the real world benefit for the latter remains unknown. Comparative effectiveness research is a tool allowing for this exploration. PATIENTS AND METHODS: The demographic and clinical characteristics of patients treated for mCRC from 2000 to 2011 were extracted from the medical records of Montefiore Medical Center...
March 14, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28405619/role-of-adenylyl-cyclase-6-in-the-development-of-lithium-induced-nephrogenic-diabetes-insipidus
#15
Søren Brandt Poulsen, Tina Bøgelund Kristensen, Heddwen L Brooks, Donald E Kohan, Timo Rieg, Robert A Fenton
Psychiatric patients treated with lithium (Li(+)) may develop nephrogenic diabetes insipidus (NDI). Although the etiology of Li(+)-induced NDI (Li-NDI) is poorly understood, it occurs partially due to reduced aquaporin-2 (AQP2) expression in the kidney collecting ducts. A mechanism postulated for this is that Li(+) inhibits adenylyl cyclase (AC) activity, leading to decreased cAMP, reduced AQP2 abundance, and less membrane targeting. We hypothesized that Li-NDI would not develop in mice lacking AC6. Whole-body AC6 knockout (AC6(-/-)) mice and potentially novel connecting tubule/principal cell-specific AC6 knockout (AC6(loxloxCre)) mice had approximately 50% lower urine osmolality and doubled water intake under baseline conditions compared with controls...
April 6, 2017: JCI Insight
https://www.readbyqxmd.com/read/28405517/hematopoietic-stem-cell-derived-myeloid-and-plasmacytoid-dc-based-vaccines-are-highly-potent-inducers-of-tumor-reactive-t-cell-and-nk-cell-responses-ex-vivo
#16
Soley Thordardottir, Nicolaas Schaap, Elja Louer, Michel G D Kester, J H Frederik Falkenburg, Joop Jansen, Timothy R D Radstake, Willemijn Hobo, Harry Dolstra
Because of the potent graft-versus-tumor (GVT) effect, allogeneic stem cell transplantation (alloSCT) can be a curative therapy for hematological malignancies. However, relapse remains the most frequent cause of treatment failure, illustrating the necessity for development of adjuvant post-transplant therapies to boost GVT immunity. Dendritic cell (DC) vaccination is a promising strategy in this respect, in particular, where distinct biologic functions of naturally occurring DC subsets, i.e. myeloid DCs (mDCs) and plasmacytoid DCs (pDCs), are harnessed...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28401678/a-and-b-antigen-levels-acquired-by-group-o-donor-derived-erythrocytes-following-abo-non-identical-transfusion-or-minor-abo-incompatible-haematopoietic-stem-cell-transplantation
#17
A K Hult, J H Dykes, J R Storry, M L Olsson
BACKGROUND AND OBJECTIVES: ABO-incompatible haematopoietic stem cell transplantation (HSCT) presents a challenge to blood component transfusion. The aim of this study was to investigate the weak blood group A or B antigen expression by donor-derived group O red blood cells (RBC) observed following transfusion or minor ABO-incompatible HSCT. In addition, in vitro experiments were performed to elucidate possible mechanisms underlying this phenomenon. MATERIALS AND METHODS: A sensitive flow cytometry assay for the semi-quantification of RBC A/B antigen levels was used to assess patient samples and evaluate in vitro experiments...
April 12, 2017: Transfusion Medicine
https://www.readbyqxmd.com/read/28384290/mait-cells-are-reduced-in-frequency-and-functionally-impaired-in-human-t-lymphotropic-virus-type-1-infection-potential-clinical-implications
#18
Dominic Paquin-Proulx, Benjamin C Greenspun, Emanuela A S Costa, Aluisio C Segurado, Esper G Kallas, Douglas F Nixon, Fabio E Leal
HTLV-1 infection is associated with several inflammatory disorders, including the neurodegenerative condition HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). It is unclear why a minority of infected subjects develop HAM/TSP. The cellular immune response has been implicated in the development of inflammatory alterations in these patients; however the pathogenic mechanisms for disease progression remain unclear. Furthermore, HTLV-1-infected individuals have an increase incidence of Mycobacterium tuberculosis (Mtb) infection, suggesting that immunological defect are associated with HTLV-1 infection...
2017: PloS One
https://www.readbyqxmd.com/read/28370175/expression-of-cancer-testis-antigens-in-salivary-gland-carcinomas-with-reference-to-mage-a-and-ny-eso-1-expression-in-adenoid-cystic-carcinoma
#19
Shintaro Beppu, Yohei Ito, Kana Fujii, Kousuke Saida, Hisashi Takino, Ayako Masaki, Takayuki Murase, Kimihide Kusafuka, Yoshiyuki Iida, Tetsuro Onitsuka, Yasushi Yatabe, Nobuhiro Hanai, Yasuhisa Hasegawa, Kei Ijichi, Shingo Murakami, Hiroshi Inagaki
BACKGROUND: Salivary gland carcinomas comprise a group of heterogeneous lesions with complex clinicopathological characteristics and distinct biological behaviors. However, recurrent or metastatic tumors are difficult to treat with currently available therapies. Cancer-testis antigens (CTAs) are detected in cancer cells but not in healthy normal tissues, with the exception of gametogenic tissues. CTAs are highly immunogenic proteins and thus represent ideal targets for cytotoxic T-lymphocyte-mediated specific immune therapy...
March 28, 2017: Histopathology
https://www.readbyqxmd.com/read/28369425/the-%C3%AE-reducing-end-in-%C3%AE-2-8-polysialic-acid-constitutes-a-unique-structural-motif
#20
Hugo F Azurmendi, Marcos D Battistel, Jasmin Zarb, Flora Lichaa, Alejandro Negrete Virgen, Joseph Shiloach, Darón I Freedberg
Over the years, structural characterizations of α(2-8)-polysialic acid (PolySia) in solution have produced inconclusive results. Efforts for obtaining detailed information in this important antigen have focused primarily on the α-linked residues and not on the distinctive characteristics of the terminal ones. The thermodynamically preferred anomeric configuration for the reducing end of sialic acids is β, which has the [I]CO2- group equatorial and the OH ([I]OH2) axial, while for all other residues the CO2- group is axial...
March 20, 2017: Glycobiology
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