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https://www.readbyqxmd.com/read/28941416/increased-cycles-of-dc-cik-immunotherapy-decreases-frequency-of-tregs-in-patients-with-resected-nsclc
#1
Haiping Song, Shujuan Liu, Ziyun Zhao, Weihong Sun, Xiaofang Wei, Xuezhen Ma, Peng Zhao, Daiqing Gao
Regulatory T cells (Tregs) suppress antitumor immune responses. Cycles of Dendritic cells (DC) vaccination combined with cytokine-induced killer (CIK) cells (DC/CIK) treatment were significantly related with good prognosis. Therefore, we investigated whether increased cycles of immunotherapy could decrease frequency of Tregs in patients with resected non-small cell lung cancer (NSCLC). Previous study from our laboratory has determined that the optimal cutoff point of the cycle count was 3cycles. We examined the levels of Tregs and the related cytokines by flow cytometric and cytokine analysis in these patients after more than (≥) 3cycles or less than (<) 3cycles of DC/CIK cell treatment...
September 20, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28937963/ki67-and-lymphocytes-in-the-pretherapeutic-core-biopsy-of-primary-invasive-breast-cancer-positive-markers-of-therapy-response-prediction-and-superior-survival
#2
REVIEW
Claus M Schlotter, Lothar Tietze, Ulf Vogt, Carlos Villena Heinsen, Antje Hahn
Background Core needle biopsy plays a crucial role as diagnostic tool for BC. Both Ki67 and likely tumor-infiltrating lymphocytes (TILs) in the near future are determining the kind of systemic therapy. The role of TILs in BC is still an issue for clinical research, albeit preliminary results of neoadjuvant and adjuvant clinical studies already now highlight the crucial impact of TILs on therapy response and survival. Methods Evaluation of related publications (pubmed) and meeting abstracts (ASCO, SABCS). Results The monoclonal antibody Ki67 recognizing a nuclear antigene in proliferating cells is a positive marker of therapy response and superior survival...
September 22, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28937851/hpv-vaccine-acceptability-in-high-risk-greek-men
#3
Lea Hoefer, Savas Tsikis, George Bethimoutis, Electra Nicolaidou, Vassilios Paparizos, Christina Antoniou, Antonios Kanelleas, Leonidas Chardalias, Georgios-Emmanouil Stavropoulos, John Schneider, Angella Charnot-Katsikas
BACKGROUND: HPV is associated with malignancy in men, yet there is a lack of data on HPV knowledge, vaccine acceptability, and factors affecting vaccine acceptability in Greek men. This study aims to identify determinants of knowledge and willingness to vaccinate against HPV among high-risk Greek men. METHODS: Men (n = 298) between the ages of 18 and 55 were enrolled from the STI and HIV clinics at "Andreas Syggros" Hospital in Athens, Greece from July-October 2015...
September 22, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28937293/enhancing-tumor-specific-immune-responses-by-transcutaneous-vaccination
#4
Hanadi Saliba, Béatrice Heurtault, Hasnaa Bouharoun-Tayoun, Vincent Flacher, Benoît Frisch, Sylvie Fournel, Soulaima Chamat
Introduction Our understanding of the involvement of the immune system in cancer control has increased over recent years. However, the development of cancer vaccines intended to reverse tumor-induced immune tolerance remains slow as most current vaccine candidates exhibit limited clinical efficacy. The skin is particularly rich with multiple subsets of dendritic cells (DCs) that are involved to varying degrees in the induction of robust immune responses. Transcutaneous administration of cancer vaccines may therefore harness the immune potential of these DCs, however, this approach is hampered by the impermeability of the stratum corneum...
September 22, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28936976/progress-in-studies-of-the-mechanisms-and-clinical-diagnosis-of-cervical-carcinoma-associated-with-genomic-integration-of-high-risk-human-papillomavirus-dna
#5
Sha-Sha Huang, Deng-Zai Hao, Yan Zhang, Hou-Ming Liu, Wan-Shui Shan
High-risk human papillomavirus (hrHPV) has been identified as a key factor in the development of cervical cancer. Integration of viral DNA into the host genome has been postulated as an important etiological event during cervical carcinogenesis. High-risk HPV DNA integration frequently results in either the deletion or interruption of the large fragment of E1 and E2 region and the overexpression of oncogenes E6 and E7 in the viral genome, and the activation of oncogenes and the inactivation of tumor suppressors in host genome...
September 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28936747/exosomes-outlook-for-future-cell-free-cardiovascular-disease-therapy
#6
Bahar Barani, Sheeja Rajasingh, Johnson Rajasingh
Cardiovascular diseases are the number one cause of death globally with an estimated 7.4 million people dying from coronary heart disease. Studies have been conducted to identify the therapeutic utility of exosomes in many diseases, including cardiovascular diseases. It has been demonstrated that exosomes are immune modulators, can be used to treat cardiac ischemic injury, pulmonary hypertension and many other diseases, including cancers. Exosomes can be used as a biomarker for disease and cell-free drug delivery system for targeting the cells...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28935774/immunotherapy-a-new-and-old-approach-to-treatment-of-soft-tissue-and-bone-sarcomas
#7
REVIEW
Michael J Nathenson, Anthony P Conley, Edward Sausville
Soft tissue and bone sarcomas are a rare and heterogeneous form of cancer. With standard of care treatment options including surgery, radiation, and chemotherapy, the long-term survival is still low for high-risk soft tissue sarcoma patients. New treatment strategies are needed. Immunotherapy offers a new potential treatment paradigm with great promise. Immunotherapy of soft tissue sarcomas dates back to Dr. Coley's first use of toxins in the late 1800s. A variety of strategies of immunotherapy have been tried in soft tissue and bone sarcomas, including various vaccines and cytokines, with limited success...
September 21, 2017: Oncologist
https://www.readbyqxmd.com/read/28933635/factors-involved-in-human-papillomavirus-hpv-vaccine-hesitancy-among-women-in-the-south-east-asian-region-sear-and-western-pacific-region-wpr-a-scoping-review
#8
Diviya Santhanes, Che Pui Wong, Yan Ye Yap, Saw Pui San, Nathorn Chaiyakunapruk, Tahir Mehmood Khan
A scoping review was performed to identify factors that may lead to human papillomavirus (HPV) vaccine hesitancy among women in low- and middle-income countries in South East Asian Region (SEAR) and Western Pacific Region (WPR). A systematic search of English and non-English articles using Pubmed, EMBASE, PsycINFO, Cochrane, MEDLINE, and CINAHL plus was conducted. Only 63 studies conducted in SEAR and WPR were included from inception until December 2016. Results of these studies have shown that poor awareness and knowledge of practices on cervical cancer prevention was evident in both SEAR and WPR...
September 21, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28933371/the-evolution-of-pediatric-disease-a-moving-target-in-public-health
#9
Mark A Brown
There is a growing threat in the re-emergence of diseases that impact pediatric demographics. While major strides have been made in the field of childhood cancers, there are still more questions than answers. In addition, public resistance to recommended practices related to childhood vaccinations fueled by misinformation has allowed infectious diseases to resurface in developed nations. Meanwhile, climate change and other destabilizing factors are shifting vector populations and driving the emergence of new diseases...
August 31, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/28933284/enzyme-instructed-self-assembly-in-biological-milieu-for-theranostics-purpose
#10
Zhentao Huang, Qingxin Yao, Simin Wei, Jiali Chen, Yuan Gao
Precision medicine is in an urgent need for public healthcare. Among the past several decades, the flourishing development in nanotechnology significantly advances the realization of precision nanomedicine. Comparing to well-documented nanoparticle-based strategy, in this review we focus on the strategy using enzyme instructed self-assembly (EISA) in biological milieu for theranostics purpose. In principle, the design of small molecules for EISA requires two aspects: (1) the substrate of enzyme of interest; (2) self-assembly potency after enzymatic conversion...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28933242/the-hpv-vaccine-knowledge-and-attitudes-among-public-health-nurses-and-general-practitioners-in-northern-norway-after-introduction-of-the-vaccine-in-the-school-based-vaccination-programme
#11
Karin Nilsen, Olaf Gjerløw Aasland, Elise Klouman
OBJECTIVE: To investigate knowledge of and attitudes to human papillomavirus (HPV) infection, HPV vaccination, cervical cancer, related sources of information and factors associated with willingness to vaccinate one's own daughter among primary health care (PHC) personnel. DESIGN: Cross-sectional study. SETTING: PHC. SUBJECTS: All public health nurses (PHNs) and general practitioners (GPs) in Northern Norway were invited to answer a structured electronic questionnaire; 31% participated (N = 220)...
September 21, 2017: Scandinavian Journal of Primary Health Care
https://www.readbyqxmd.com/read/28932647/immunotherapy-with-listeria-reduces-metastatic-breast-cancer-in-young-and-old-mice-through-different-mechanisms
#12
Arthee Jahangir, Dinesh Chandra, Wilber Quispe-Tintaya, Manisha Singh, Benson Chellakkan Selvanesan, Claudia Gravekamp
Cancer immunotherapy is one of the most promising and benign therapies against metastatic cancer. However, most cancer patients are old and elderly react less efficient to cancer vaccines than young adults, due to T cell unresponsiveness. Here we present data of cancer vaccination in young and old mice with metastatic breast cancer (4T1 model). We tested adaptive and innate immune responses to foreign antigens (Listeria-derived) and self-antigens (tumor-associated antigens (TAA)) and their contribution to elimination of metastases at young and old age...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28932640/co-delivery-of-the-nkt-agonist-%C3%AE-galactosylceramide-and-tumor-antigens-to-cross-priming-dendritic-cells-breaks-tolerance-to-self-antigens-and-promotes-antitumor-responses
#13
Reem Ghinnagow, Julie De Meester, Luis Javier Cruz, Caroline Aspord, Stéphanie Corgnac, Elodie Macho-Fernandez, Daphnée Soulard, Josette Fontaine, Laurence Chaperot, Julie Charles, Fabrice Soncin, Fathia Mami-Chouaib, Joel Plumas, Christelle Faveeuw, François Trottein
Vaccines designed to abrogate the tolerance of tumor self-antigens and amplify cytotoxic CD8(+) T cells (CTLs) have promise for the treatment of cancer. Type I natural killer (NKT) cells have attracted considerable interest in the cancer therapy field. In the current study, we have exploited the unique ability of NKT cells to serve as T-helper cells to license dendritic cells (DCs) for cross priming with the aim to generate efficient CTL antitumor responses. To this end, we designed a nanoparticle-based vaccine to target cross-priming DCs via the Clec9a endocytic pathway...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28932636/cd103-tumor-infiltrating-lymphocytes-are-tumor-reactive-intraepithelial-cd8-t-cells-associated-with-prognostic-benefit-and-therapy-response-in-cervical-cancer
#14
Fenne L Komdeur, Thalina M Prins, Stephanie van de Wall, Annechien Plat, G Bea A Wisman, Harry Hollema, Toos Daemen, David N Church, Marco de Bruyn, Hans W Nijman
Human papilloma virus (HPV)-induced cervical cancer constitutively expresses viral E6/E7 oncoproteins and is an excellent target for T cell-based immunotherapy. However, not all tumor-infiltrating T cells confer equal benefit to patients, with epithelial T cells being superior to stromal T cells. To assess whether the epithelial T cell biomarker CD103 could specifically discriminate the beneficial antitumor T cells, association of CD103 with clinicopathological variables and outcome was analyzed in the TCGA cervical cancer data set (n = 304) and by immunohistochemistry (IHC) in an independent cohort (n = 460)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28932628/a-novel-in-silico-framework-to-improve-mhc-i-epitopes-and-break-the-tolerance-to-melanoma
#15
Cristian Capasso, Aniket Magarkar, Victor Cervera-Carascon, Manlio Fusciello, Sara Feola, Martin Muller, Mariangela Garofalo, Lukasz Kuryk, Siri Tähtinen, Lucio Pastore, Alex Bunker, Vincenzo Cerullo
Tolerance toward tumor antigens, which are shared by normal tissues, have often limited the efficacy of cancer vaccines. However, wild type epitopes can be tweaked to activate cross-reactive T-cell clones, resulting in antitumor activity. The design of these analogs (i.e., heteroclitic peptides) can be difficult and time-consuming since no automated in silico tools are available. Hereby we describe the development of an in silico framework to improve the selection of heteroclitic peptides. The Epitope Discovery and Improvement System (EDIS) was first validated by studying the model antigen SIINFEKL...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28932627/addition-of-anti-estrogen-therapy-to-anti-her2-dendritic-cell-vaccination-improves-regional-nodal-immune-response-and-pathologic-complete-response-rate-in-patients-with-er-pos-her2-pos-early-breast-cancer
#16
Lea Lowenfeld, Salman Zaheer, Crystal Oechsle, Megan Fracol, Jashodeep Datta, Shuwen Xu, Elizabeth Fitzpatrick, Robert E Roses, Carla S Fisher, Elizabeth S McDonald, Paul J Zhang, Angela DeMichele, Rosemarie Mick, Gary K Koski, Brian J Czerniecki
HER2-directed therapies are less effective in patients with ER(pos) compared to ER(neg) breast cancer, possibly reflecting bidirectional activation between HER2 and estrogen signaling pathways. We investigated dual blockade using anti-HER2 vaccination and anti-estrogen therapy in HER2(pos)/ER(pos) early breast cancer patients. In pre-clinical studies of HER2(pos) breast cancer cell lines, ER(pos) cells were partially resistant to CD4(+) Th1 cytokine-induced metabolic suppression compared with ER(neg) cells...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28931823/bacterial-outer-membrane-vesicles-suppress-tumor-by-interferon-%C3%AE-mediated-antitumor-response
#17
Oh Youn Kim, Hyun Taek Park, Nhung Thi Hong Dinh, Seng Jin Choi, Jaewook Lee, Ji Hyun Kim, Seung-Woo Lee, Yong Song Gho
Gram-negative bacteria actively secrete outer membrane vesicles, spherical nano-meter-sized proteolipids enriched with outer membrane proteins, to the surroundings. Outer membrane vesicles have gained wide interests as non-living complex vaccines or delivery vehicles. However, no study has used outer membrane vesicles in treating cancer thus far. Here we investigate the potential of bacterial outer membrane vesicles as therapeutic agents to treat cancer via immunotherapy. Our results show remarkable capability of bacterial outer membrane vesicles to effectively induce long-term antitumor immune responses that can fully eradicate established tumors without notable adverse effects...
September 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28931639/trispecific-broadly-neutralizing-hiv-antibodies-mediate-potent-shiv-protection-in-macaques
#18
Ling Xu, Amarendra Pegu, Ercole Rao, Nicole Doria-Rose, Jochen Beninga, Krisha McKee, Dana M Lord, Ronnie R Wei, Gejing Deng, Mark Louder, Stephen D Schmidt, Zachary Mankoff, Lan Wu, Mangaiarkarasi Asokan, Christian Beil, Christian Lange, Wulf Dirk Leuschner, Jochen Kruip, Rebecca Sendak, Young Do Kwon, Tongqing Zhou, Xuejun Chen, Robert T Bailer, Keyun Wang, Misook Choe, Lawrence J Tartaglia, Dan H Barouch, Sijy O'Dell, John-Paul Todd, Dennis R Burton, Mario Roederer, Mark Connors, Richard A Koup, Peter D Kwong, Zhi-Yong Yang, John R Mascola, Gary J Nabel
The development of an effective AIDS vaccine has been challenging due to viral genetic diversity and the difficulty in generating broadly neutralizing antibodies (bnAbs). Here, we engineered trispecific antibodies (Abs) that allow a single molecule to interact with three independent HIV-1 envelope determinants: 1) the CD4 binding site, 2) the membrane proximal external region (MPER) and 3) the V1V2 glycan site. Trispecific Abs exhibited higher potency and breadth than any previously described single bnAb, showed pharmacokinetics similar to human bnAbs, and conferred complete immunity against a mixture of SHIVs in non-human primates (NHP) in contrast to single bnAbs...
September 20, 2017: Science
https://www.readbyqxmd.com/read/28931221/modeling-of-us-human-papillomavirus-hpv-seroprevalence-by-age-and-sexual-behavior-indicates-an-increasing-trend-of-hpv-infection-following-the-sexual-revolution
#19
Marc D Ryser, Anne Rositch, Patti E Gravitt
Background: The United States has experienced an increase in the incidence of human papillomavirus (HPV)-related cancers that are not screen-detectable. It has been hypothesized, but not directly demonstrated, that this is due to increasing HPV prevalence in the unvaccinated population. Methods: Female self-reported numbers of lifetime sex partners and HPV serology from the National Health and Nutrition Examination Survey (NHANES) were used to develop mathematical models of sexual partner acquisition and antibody dynamics...
September 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28930979/analysis-of-18fdg-pet-ct-imaging-as-a-tool-for-studying-mycobacterium-tuberculosis-infection-and-treatment-in-non-human-primates
#20
Alexander G White, Pauline Maiello, M Teresa Coleman, Jaime A Tomko, L James Frye, Charles A Scanga, Philana Ling Lin, JoAnne L Flynn
Mycobacterium tuberculosis remains the number one infectious agent in the world today. With the emergence of antibiotic resistant strains, new clinically relevant methods are needed that evaluate the disease process and screen for potential antibiotic and vaccine treatments. Positron Emission Tomography/Computed Tomography (PET/CT) has been established as a valuable tool for studying a number of afflictions such as cancer, Alzheimer's disease, and inflammation/infection. Outlined here are a number of strategies that have been employed to evaluate PET/CT images in cynomolgus macaques that are infected intrabronchially with low doses of M...
September 5, 2017: Journal of Visualized Experiments: JoVE
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