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https://www.readbyqxmd.com/read/28454473/methylation-pattern-of-preferentially-expressed-antigen-of-melanoma-in-acute-myeloid-leukemia-and-myelodysplastic-syndromes
#1
Ya-Zhen Qin, Yan-Huan Zhang, Xiao-Ying Qin, Hong-Hu Zhu
Preferentially expressed antigen of melanoma (PRAME), a tumor-associated antigen, is overexpressed in a variety of hematologic malignancies with a great variation in expression. The majority of patients with acute myeloid leukemia (AML) 1-eight-twenty one (ETO)(+) AML and a certain number of myelodysplastic syndromes (MDS) have an abnormally high increase in PRAME expression level. The landscape of PRAME methylation requires evaluation in order to determine the most relevant sites and the exact association of its methylation with expression level and type of disease...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454471/downregulation-of-fkbp14-by-rna-interference-inhibits-the-proliferation-adhesion-and-invasion-of-gastric-cancer-cells
#2
Ruizhong Wang, Hua Fang, Qin Fang
FK506 binding protein (FBBP) 14 belongs to the family of FKBPs. Altered expression of FKBPs are observed in several malignancies. The present study aimed to explore the expression and biological function of FKBP14 in gastric cancer. FKBP14 expression levels in 40 gastric cancer samples and matched control samples were evaluated using quantitative polymerase chain reaction. Cell proliferation was evaluated using Cell Counting kit-8 assay. A cell adhesion and a Transwell assay were performed to detect cell adhesion and invasion...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454452/flow-cytometry-based-immunophenotypic-analysis-of-primary-systemic-light-chain-amyloidosis
#3
Xiangwen Diao, Juan Li, Juan Ouyang, Junru Liu, Beihui Huang, Meilan Chen, Jingli Gu
Using flow cytometry, the present study aimed to investigate the immunophenotypic characteristics of malignant plasma cells (PCs) in the bone marrow of patients with primary systemic light chain amyloidosis (AL) compared with the characteristics of patients with multiple myeloma (MM). Flow cytometric results of 51 patients with AL and 150 patients with MM were reviewed. The proportion of total bone marrow PCs in the patients with AL was significantly lower than that in the patients with MM, 1.35% (0.3-9.5%) vs...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454416/survivin-dex3-as-a-biomarker-of-thyroid-cancers-a-study-at-the-mrna-and-protein-level
#4
Joanna Waligórska-Stachura, Nadia Sawicka-Gutaj, Maciej Zabel, Mirosław Andrusiewicz, Paweł Gut, Agata Czarnywojtek, Marek Ruchała
Survivin and its splice variants DEx3 and 2B are involved in pathogenesis of numerous types of cancer. Proliferating cell nuclear antigen (PCNA) level correlates with cellular proliferation. The present study aimed to analyze the potential utility of survivin and its splice variants DEx3 and 2B as biomarkers for thyroid cancer. PCNA, survivin and its splice variants DEx3 and 2B expressions were analyzed in 22 tissue samples (15 thyroid cancers and 7 benign lesions) by reverse transcription-quantitative polymerase chain reaction and immunohistochemistry (IHC)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454390/expression-of-novel-cancer-testis-antigen-tmem31-increases-during-metastatic-melanoma-progression
#5
Jiaqiang Li, Xiaowen Zou, Cailing Li, Jianhua Zhong, Yan Chen, Xiaoyue Zhang, Fuming Qi, Mengshuo Li, Zhiming Cai, Aifa Tang
Cancer/testis (CT) antigens are promising targets for immunotherapy due to their restricted expression in the germ cells of the testis in healthy tissue and high immunogenicity. The aim of the present study was to determine whether transmembrane protein 31 (TMEM31) is a CT antigen and to investigate the pattern of TMEM31 expression during the progression of melanoma. The pattern of expression of human TMEM31 mRNA in multiple human tissues was determined through reverse transcription-polymerase chain reaction analysis...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454381/optimized-construction-of-muc1-vntrn-dna-vaccine-and-its-anti-pancreatic-cancer-efficacy
#6
Yuan-Feng Gong, Quan-Bo Zhou, Ya-Di Liao, Cong Mai, Tie-Jun Chen, Yun-Qiang Tang, Ru-Fu Chen
Considering mucin 1-variable number tandem repeat (MUC1-VNTRn) as a novel target for pancreatic cancer immunotherapy, the present study aimed to screen and identify the pVAX1-MUC1-VNTRn DNA vaccine with the strongest immunogenicity. Following construction of a pVAX1-MUC1-VNTRn plasmid, immature dendritic cells (DCs) were subjected to transfection, and mature DCs were then co-cultured with autologous T-cells. The numbers of cytotoxic T lymphocytes (CTLs) secreting interferon (IFN)-γ were determined using an enzyme-linked immunospot assay, and CytoTox(®) was also used to examine the MUC1-VNTRn-specific Lethal effect of CTLs on Capan2 cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454377/frequent-expression-of-human-leukocyte-antigen-class-i-and-the-status-of-intratumoral-immune-cells-in-alveolar-soft-part-sarcoma
#7
Akira Ogose, Hiroyuki Kawashima, Tetsuo Hotta, Takashi Ariizumi, Tetsuro Yamagishi, Naoki Oike, Taro Sasaki, Hiroshi Hatano, Hajime Umezu, Naoto Endo
The prognosis of alveolar soft part sarcoma is poor, despite the slow growth of the tumor. A number of cases with spontaneous regression of this rare tumor have been reported. Although the mechanisms underlying spontaneous regression remain uncertain, local immune reaction may be a possible contributing factor. Immunohistochemical expression of human leukocyte antigen (HLA) class I, cluster of differentiation (CD) 3, CD4, CD8, CD20, CD45, CD56, CD68, CD138 and CD163 were assessed in a series of 10 alveolar soft part sarcomas, and the expression profiles were associated with patients' clinicopathological parameters...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454356/harnessing-antitumor-immunity-employment-of-tumor-recall-antigens-to-optimize-the-inflammatory-response-to-cancer
#8
Kimberly A Silverio, Shyam A Patel
The advent of immunotherapy for cancer has contributed to the era of personalized medicine for cancer. The various immunotherapy-based treatments that have been explored thus far include monoclonal antibody therapy, tumor vaccines, immune checkpoint blockade and adoptive T cell transfer, among others. The groundwork for all these immunotherapeutic modalities rests within the tumor microenvironment, specifically the immune factors that influence the tumor-drug interface. Prior to therapeutic design, the tumor microenvironmental interactions and the current barriers to successful treatment must first be understood...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454298/expression-and-prognostic-relevance-of-mage-a3-and-mage-c2-in-non-small-cell-lung-cancer
#9
Xinfeng Chen, Liping Wang, Jinyan Liu, Lan Huang, Li Yang, Qun Gao, Xiaojuan Shi, Jieyao Li, Feng Li, Zhen Zhang, Song Zhao, Bin Zhang, Pierre Van der Bruggen, Yi Zhang
Melanoma-associated antigen (MAGE)-A3 and MAGE-C2 are antigens encoded by cancer-germline genes, and have been recognized as potential prognostic biomarkers and attractive targets for immunotherapy in multiple types of cancer. The present study aimed to analyze the clinicopathological significance of MAGE-A3/C2 expression in non-small cell lung cancer (NSCLC). The association between MAGE-A3/C2 mRNA and protein expression, and the pathological characteristics and overall survival of patients with NSCLC was analyzed...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454292/dna-vaccine-encoding-human-papillomavirus-antigens-flanked-by-a-signal-peptide-and-a-kdel-sequence-induces-a-potent-therapeutic-antitumor-effect
#10
Jose J Perez-Trujillo, Rodolfo Garza-Morales, Jose A Barron-Cantu, Gabriel Figueroa-Parra, Aracely Garcia-Garcia, Humberto Rodriguez-Rocha, Jaime Garcia-Juarez, Gerardo E Muñoz-Maldonado, Odila Saucedo-Cardenas, Roberto Montes-De-Oca-Luna, Maria De Jesus Loera-Arias
Cellular immune responses play a critical role in the eradication of intracellular infections and malignant cells through the recognition and subsequent removal of the infection or malignant cells. Effective antigen presentation is crucial for stimulating the immune system against malignant cells. Calreticulin (CRT) has been used to improve antigen presentation. However, CRT overexpression has been previously associated with the development of pancreatic and breast cancer. The import and retention signals of CRT in the endoplasmic reticulum (ER) can be used to overcome CRT overexpression...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454277/monocyte-derived-dendritic-cells-from-patients-with-cervical-intraepithelial-lesions
#11
Angela Maria Moed Lopes, Márcia Antoniazi Michelin, Eddie Fernando Cândido Murta
Immunotherapy with dendritic cells (DCs) is a great promise for the treatment of neoplasms. However, the obtainment and protocol of differentiation of these cells may depend on extrinsic factors such as the tumor itself. The aim of the present study was to verify the influence of cervical neoplasia on different protocols of differentiation of monocyte-derived DCs resulting in an increased maturation phenotype. A total of 83 women were included in the study. The patients were grouped in low-grade squamous intraepithelial lesion (LSIL) (n=30), high-grade squamous intraepithelial lesion (HSIL) (n=22), cervical cancer (n=10) and healthy patients (n=21) groups...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454240/squamous-cell-carcinoma-antigen-expression-in-tumor-cells-is-associated-with-the-chemosensitivity-and-survival-of-patients-with-cervical-cancer-receiving-docetaxel-carboplatin-based-neoadjuvant-chemotherapy
#12
Peng Chen, Liang Jiao, Dan-Bo Wang
The present study examined the association between squamous cell carcinoma antigen (SCCA) expression and the response of patients with cervical cancer to docetaxel-carboplatin (DC) combination chemotherapy, in order to determine the prognostic potential of SCCA expression. A total of 21 patients were enrolled with stage IB2 or stage IIA2 SCC. Of these, 9 patients had chemotherapy-sensitive cancer (2 cases with a complete response and 7 cases with a partial response) and 12 patients had chemotherapy-resistant cancer (12 cases of stable disease and no cases of progressive disease)...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453693/racial-disparities-in-prostate-cancer-outcome-among-prostate-specific-antigen-screening-eligible-populations-in-the-united-states
#13
B A Mahal, Y-W Chen, V Muralidhar, A R Mahal, T K Choueiri, K E Hoffman, J C Hu, C J Sweeney, J B Yu, F Y Feng, S P Kim, C J Beard, N E Martin, Q-D Trinh, P L Nguyen
Background: In 2012, the United States Preventive Services Task Force (USPSTF) recommended against prostate-specific antigen (PSA) screening, despite evidence that Black men are at a higher risk of prostate cancer-specific mortality (PCSM). We evaluated whether Black men of potentially screening-eligible age (55-69 years) are at a disproportionally high risk of poor outcomes. Patients and methods: The SEER database was used to study 390 259 men diagnosed with prostate cancer in the United States between 2004 and 2011...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28449007/efficacy-of-stereotactic-body-radiotherapy-in-oligorecurrent-and-in-oligoprogressive-prostate-cancer-new-evidence-from-a-multicentric-study
#14
Luca Triggiani, Filippo Alongi, Michela Buglione, Beatrice Detti, Riccardo Santoni, Alessio Bruni, Ernesto Maranzano, Frank Lohr, Rolando D'Angelillo, Alessandro Magli, Alberto Bonetta, Rosario Mazzola, Nadia Pasinetti, Giulio Francolini, Gianluca Ingrosso, Fabio Trippa, Sergio Fersino, Paolo Borghetti, Paolo Ghirardelli, Stefano Maria Magrini
BACKGROUND: The aim of the present study is to evaluate the impact of metastases-directed stereotactic body radiotherapy in two groups of oligometastatic prostate cancer (PC) patients: oligorecurrent PC and oligoprogressive castration-resistant PC (oligo-CRPC). METHODS: Inclusion criteria of the present multicentre retrospective analysis were: (1) oligorecurrent PC, defined as the presence of 1-3 lesions (bone or nodes) detected with choline positron emission tomography or CT plus bone scan following biochemical recurrence; (2) oligo-CRPC, defined as metastases (bone or nodes) detected after a prostatic-specific antigen rise during androgen deprivation therapy (ADT)...
April 27, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28448627/engineering-chimeric-human-and-mouse-major-histocompatibility-complex-mhc-class-i-tetramers-for-the-production-of-t-cell-receptor-tcr-mimic-antibodies
#15
Demin Li, Carol Bentley, Jenna Yates, Maryam Salimi, Jenny Greig, Sarah Wiblin, Tasneem Hassanali, Alison H Banham
Therapeutic monoclonal antibodies targeting cell surface or secreted antigens are among the most effective classes of novel immunotherapies. However, the majority of human proteins and established cancer biomarkers are intracellular. Peptides derived from these intracellular proteins are presented on the cell surface by major histocompatibility complex class I (MHC-I) and can be targeted by a novel class of T-cell receptor mimic (TCRm) antibodies that recognise similar epitopes to T-cell receptors. Humoural immune responses to MHC-I tetramers rarely generate TCRm antibodies and many antibodies recognise the α3 domain of MHC-I and β2 microglobulin (β2m) that are not directly involved in presenting the target peptide...
2017: PloS One
https://www.readbyqxmd.com/read/28448521/immunization-with-toxoplasma-gondii-peroxiredoxin-1-induces-protective-immunity-against-toxoplasmosis-in-mice
#16
Ragab M Fereig, Yasuhiro Kuroda, Mohamad Alaa Terkawi, Motamed Elsayed Mahmoud, Yoshifumi Nishikawa
To develop a vaccine against Toxoplasma gondii, a vaccine antigen with immune-stimulating activity is required. In the present study, we investigated the immunogenicity and prophylactic potential of T. gondii peroxiredoxin 1 (TgPrx1). The TgPrx1 was detected in the ascitic fluid of mice 6 days postinfection, while specific antibody levels were low in the sera of chronically infected mice. Treatment of murine peritoneal macrophages with recombinant TgPrx1 triggered IL-12p40 and IL-6 production, but not IL-10 production...
2017: PloS One
https://www.readbyqxmd.com/read/28448211/prevalence-and-geographic-distribution-of-vector-borne-pathogens-in-apparently-healthy-dogs-in-croatia
#17
Vladimir Mrljak, Josipa Kuleš, Željko Mihaljević, Marin Torti, Jelena Gotić, Martina Crnogaj, Tatjana Živičnjak, Iva Mayer, Iva Šmit, Mangesh Bhide, Renata Barić Rafaj
Vector-borne pathogens (VBPs) are a group of globally extended and quickly spreading pathogens that are transmitted by various arthropod vectors. The aim of the present study was to investigate the seroprevalence against Babesia canis, Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, Leishmania infantum, Dirofilaria immitis, and Ehrlichia canis in dogs in Croatia. We investigated 435 randomly selected apparently healthy dogs in 13 different locations of Croatia for antibodies to B. canis by indirect immunofluorescence using a commercial IFA IgG Antibody Kit...
April 27, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28448040/determination-of-high-affinity-antibody-antigen-binding-kinetics-using-four-biosensor-platforms
#18
Danlin Yang, Ajit Singh, Helen Wu, Rachel Kroe-Barrett
Label-free optical biosensors are powerful tools in drug discovery for the characterization of biomolecular interactions. In this study, we describe the use of four routinely used biosensor platforms in our laboratory to evaluate the binding affinity and kinetics of ten high-affinity monoclonal antibodies (mAbs) against human proprotein convertase subtilisin kexin type 9 (PCSK9). While both Biacore T100 and ProteOn XPR36 are derived from the well-established Surface Plasmon Resonance (SPR) technology, the former has four flow cells connected by serial flow configuration, whereas the latter presents 36 reaction spots in parallel through an improvised 6 x 6 crisscross microfluidic channel configuration...
April 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28448002/measurement-of-t-cell-alloreactivity-using-imaging-flow-cytometry
#19
Stephen C Juvet, Sajad Moshkelgosha, Sharon Sanderson, Joanna Hester, Kathryn J Wood, Andrew Bushell
The measurement of immunological reactivity to donor antigens in transplant recipients is likely to be crucial for the successful reduction or withdrawal of immunosuppression. The mixed leukocyte reaction (MLR), limiting dilution assays, and trans-vivo delayed-type hypersensitivity (DTH) assay have all been applied to this question, but these methods have limited predictive ability and/or significant practical limitations that reduce their usefulness. Imaging flow cytometry is a technique that combines the multiparametric quantitative powers of flow cytometry with the imaging capabilities of fluorescent microscopy...
April 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447927/unexpected-positive-prospective-crossmatches-in-organ-transplant
#20
REVIEW
Judith Desoutter, Marie-Joelle Apithy, Nicolas Guillaume
Preformed donor-specific antibodies against human leukocyte antigen can induce antibody-mediated rejection after organ transplant. Hence, future transplant recipients undergo pretransplant screening for preformed antibodies (ie, virtual crossmatch). Subsequently, prospective (analytic) crossmatching is performed using conventional, complement-dependent cytotoxicity assays and/or flow cytometry-based methods. The present article reviews factors that must be considered when unexpected, positive, prospective crossmatches are observed...
April 27, 2017: Experimental and Clinical Transplantation
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