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Vaccine and cancer

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https://www.readbyqxmd.com/read/29150567/amplifying-ifn-%C3%AE-signaling-in-dendritic-cells-by-cd11c-specific-loss-of-socs1-increases-innate-immunity-to-infection-while-decreasing-adaptive-immunity
#1
Alejandro F Alice, Gwen Kramer, Shelly Bambina, Jason R Baird, Keith S Bahjat, Michael J Gough, Marka R Crittenden
Although prophylactic vaccines provide protective humoral immunity against infectious agents, vaccines that elicit potent CD8 T cell responses are valuable tools to shape and drive cellular immunity against cancer and intracellular infection. In particular, IFN-γ-polarized cytotoxic CD8 T cell immunity is considered optimal for protective immunity against intracellular Ags. Suppressor of cytokine signaling (SOCS)1 is a cross-functional negative regulator of TLR and cytokine receptor signaling via degradation of the receptor-signaling complex...
November 17, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29149907/mapping-evidence-on-the-distribution-of-human-papillomavirus-related-cancers-in-sub-saharan-africa-scoping-review-protocol
#2
Bridget K M Lekoane, Tivani P Mashamba-Thompson, Themba G Ginindza
BACKGROUND: Despite the introduction of HPV vaccines, the incidence of HPV-related cancers (cervical, penile, anal, vulvar, vagina, head, and neck) in sub-Saharan Africa has been rising. The increasing incidence of these HPV-related cancers has been attributed to changes in lifestyle-related risk factors, most notably sexual behavior. The main objective of this study is to map evidence on the distribution of HIV-related cancers in sub-Saharan Africa (SSA). METHODS AND ANALYSIS: We will conduct a scoping review to explore, describe, and map literature on the distribution of HPV-related cancers in sub-Saharan Africa...
November 17, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/29149434/enhancement-of-therapeutic-dna-vaccine-potency-by-melatonin-through-inhibiting-vegf-expression-and-induction-of-antitumor-immunity-mediated-by-cd8-t-cells
#3
Sanaz Baghban Rahimi, Alireza Mohebbi, Gelareh Vakilzadeh, Peyvand Biglari, Soodeh Razeghi Jahromi, Seyed Reza Mohebi, Sadegh Shirian, Ali Gorji, Amir Ghaemi
To be effective, therapeutic cancer vaccines should stimulate both an effective cell-mediated and a robust cytotoxic CD8+ T-cell response against human papillomavirus (HPV)-infected cells to treat the pre-existing tumors and prevent potential future tumors. In this study, the therapeutic experiments were designed in order to evaluate antitumor effect against the syngeneic TC-1 tumor model. The anti-tumor efficacy of a HPV-16 E7 DNA vaccine adjuvanted with melatonin (MLT) was evaluated in a C57BL/6 mouse tumor model by measuring tumor growth post vaccination and the survival rate of tumor-bearing mice, analyzing the specific lymphocyte proliferation responses in control and vaccinated mice by MTT assay...
November 17, 2017: Archives of Virology
https://www.readbyqxmd.com/read/29147623/tissue-resident-memory-t-cells-play-a-key-role-in-the-efficacy-of-cancer-vaccines
#4
C Granier, C Blanc, S Karaki, T Tran, H Roussel, E Tartour
Resident memory CD8(+)T cells (TRM) usually defined by the CD103 marker represent a new subset of long-lived memory T cells that remain in the tissues. We directly demonstrate their specific role in cancer vaccine-induced tumor regression. In human, they also seem to play a major role in tumor immunosurveillance.
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147609/tumor-immunology-meets%C3%A2-immunology-modified-cancer-cells-as-professional-apc-for-priming-na%C3%A3-ve-tumor-specific-cd4-t-cells
#5
REVIEW
Farah Bou Nasser Eddine, Elise Ramia, Giovanna Tosi, Greta Forlani, Roberto S Accolla
Although recent therapeutic approaches have revitalized the enthusiasm of the immunological way to combat cancer, still the comprehension of immunity against tumors is largely incomplete. Due to their specific function, CD8+ T cells with cytolytic activity (CTL) have attracted the attention of most investigators because CTL are considered the main effectors against tumor cells. Nevertheless, CTL activity and persistence is largely dependent on the action of CD4+ T helper cells (TH). Thus establishment of tumor-specific TH cell response is key to the optimal response against cancer...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29146945/maraba-virus-vectored-cancer-vaccines-represent-a-safe-and-novel-therapeutic-option-for-cats
#6
Jeff Hummel, Dorothee Bienzle, Annette Morrison, Michelle Cieplak, Kyle Stephenson, Josepha DeLay, J Paul Woods, Brian D Lichty, Byram W Bridle
Direct killing of malignant cells combined with induction of tumour-specific immune responses makes oncolytic vaccines attractive for cancer therapy. We previously developed a heterologous cancer immunization strategy that utilized a replication-defective adenovirus-vectored primary vaccine encoding a tumour antigen followed by boosting with a replication-competent Maraba virus expressing the same antigen. To assess the safety of oncolytic Maraba virus-based booster vaccines and inform the design of clinical trials, we conducted translational studies in cats, which have immune systems that are similar to people and spontaneously develop cancers of comparable types and etiologies...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29146881/beta-adrenergic-signaling-impairs-anti-tumor-cd8-t-cell-responses-to-b-cell-lymphoma-immunotherapy
#7
Michael D Nissen, Erica K Sloan, Stephen R Mattarollo
Beta-adrenergic receptor (betaAR) signaling regulates many physiological processes, including immune system responses. There is growing evidence also for betaAR-induced modulation of cancer growth and metastasis. In the Eu-myc mouse model of B-cell lymphoma, we investigated the effects of chronically elevated betaAR signaling on lymphoma progression and anti-tumor immunity, as well as the impact on cancer immunotherapy. Chronic treatment with the non-selective beta-agonist isoprenaline promoted lymphoma development in a manner dependent on signaling within the hematopoietic compartment...
November 16, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/29146441/combining-immunotherapies-for-the-treatment-of-prostate-cancer
#8
REVIEW
Jason M Redman, James L Gulley, Ravi A Madan
Sipuleucel-T, a therapeutic dendritic-cell vaccine, was Food and Drug Administration-approved for prostate cancer in 2010. No new immunotherapies for prostate cancer have been approved since. However, novel agents and combination approaches offer great promise for improving outcomes for prostate cancer patients. Here we review the latest developments in immunotherapy for prostate cancer. Sipuleucel-T has demonstrated a survival advantage of 4.1 months in metastatic castration-resistant prostate cancer. PSA-TRICOM (PROSTVAC), a prostate-specific antigen-targeted vaccine platform, showed evidence of clinical and immunologic efficacy in early-phase clinical trials, and results from a phase III trial in advanced disease are pending...
December 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29145268/seroconverting-nonresponder-of-high-dose-intramuscular-hbv-vaccine-with-intradermal-hbv-vaccine-a-case-report
#9
Manjusha Das, Vishwas Vanar, Daniel K Martin, Saqib Walayat, Jaymon Patel, Maaz B Badshah, Nikhil R Kalva, Watcoun-Nchinda Pisoh, Sonu Dhillon
INTRODUCTION: Liver disease is a leading cause of death among human immunodeficiency virus (HIV)-infected patients in the United States. Patients with HIV and hepatitis B virus (HBV) coinfection have accelerated liver disease, higher rates of cirrhosis, and liver cancer, and markedly increased liver-related mortality. The CDC and US Advisory Committee on Immunization Practices recommend hepatitis B vaccination for all HIV-infected individuals. Unfortunately, HIV-infected patients have a worse response rate after standard HBV vaccination...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144754/immunogenic-cell-death-amplified-by-co-localized-adjuvant-delivery-for-cancer-immunotherapy
#10
Yuchen Fan, Rui Kuai, Yao Xu, Lukasz J Ochyl, Darrell J Irvine, James Moon
Despite their potential, conventional whole-cell cancer vaccines prepared by freeze-thawing or irradiation have shown limited therapeutic efficacy in clinical trials. Recent studies have shown that cancer cells treated with certain chemotherapeutics, such as mitoxantrone, can undergo immunogenic cell death (ICD) and initiate anti-tumor immune responses. However, it remains unclear how ICD can be exploited for cancer immunotherapy. Here, we present a new biomaterial-based strategy for converting immunogenically dying tumor cells into a powerful platform for cancer vaccination and demonstrate their immunogenicity in murine models of melanoma and colon carcinoma...
November 16, 2017: Nano Letters
https://www.readbyqxmd.com/read/29144546/presence-of-infection-and-analysis-of-hpv-subtypes-in-girls-younger-than-9-years-old-attended-at-a-referral-service-in-esp%C3%A3-rito-santo-brazil
#11
Mariana Penha De Nadai Sartori, Lidiane Pignaton Agostini, Thaís Tristão Tovar, Raquel Silva Dos Reis, Raquel Spinassé Dettogni, Eldamária de Vargas Wolfgramm Dos Santos, Antônio Chambô Filho, Iúri Drumond Louro
PURPOSE: Human papillomavirus is found in adults and adolescents and is associated with genital warts and cervical cancer. However, it has been detected in girls younger than 10 years old. Currently, there are no prevention methods for this age group, since it is not considered a risk group. The aim of this study was to evaluate the presence of infection and HPV subtype in girls under 9 years old attended at a referral service in the State of Espírito Santo, Brazil. METHODS: Forty-three girls younger than 9 years old had gynecological brush samples collected from vulval and perineal/anal regions...
November 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29143114/cancer-vaccine-strategies-translation-from-mice-to-human-clinical-trials
#12
REVIEW
Jay A Berzofsky, Masaki Terabe, Jane B Trepel, Ira Pastan, David F Stroncek, John C Morris, Lauren V Wood
We translated two cancer vaccine strategies from mice into human clinical trials. (1) In preclinical studies on TARP, an antigen expressed in most prostate cancers, we mapped epitopes presented by HLA-A*0201, modified them to increase affinity and immunogenicity in HLA transgenic mice, and induced human T cells that killed human cancer cells ("epitope enhancement"). In a clinical trial, HLA-A2(+) prostate cancer patients with PSA biochemical recurrence (Stage D0) were vaccinated with two peptides either in Montanide-ISA51 or on autologous dendritic cells (DCs)...
November 15, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29143101/candidate-biomarkers-in-the-cervical-vaginal-fluid-for-the-self-diagnosis-of-cervical-precancer
#13
REVIEW
Xaveer Van Ostade, Martin Dom, Wiebren Tjalma, Geert Van Raemdonck
PURPOSE: Despite improvement in vaccines against human papilloma virus (HPV), the causative agent of cervical cancer, screening women for cervical precancer will remain indispensable in the coming 30-40 years. A simple test that could be performed at home or at a doctor's practice and that informs the woman whether she is at risk would significantly help make a broader group of patients who aware that they need medical treatment. Cervical vaginal fluid (CVF) is a body fluid that is very well suited for such a test...
November 15, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29142905/p-cadherin-cdh3-is-overexpressed-in-colorectal-tumors-and-has-potential-as-a-serum-marker-for-colorectal-cancer-monitoring
#14
H M C Shantha Kumara, Geoffrey A Bellini, Otavia L Caballero, Sonali A C Herath, Tao Su, Aqeel Ahmed, Linda Njoh, Vesna Cekic, Richard L Whelan
Introduction: Placental-Cadherin (CDH3) is a cell adhesion molecule vital to cellular localization and tissue integrity. It is highly expressed in the placenta (PLC)and is overexpressed by many types of cancer. P-cadherin levels in colorectal cancer (CRC) remains poorly characterized. This study's purpose was to determine P-cadherin expression in CRC and normal tissues and to assess plasma CDH3 levels in order to determine the relationship, if any, between cancer stage, P-cadherin expression and plasma CDH3 levels...
September 2017: Oncoscience
https://www.readbyqxmd.com/read/29141136/systemic-mrna-delivery-to-the-lungs-by-functional-polyester-based-carriers
#15
Yunfeng Yan, Hu Xiong, Xinyi Zhang, Qiang Cheng, Daniel John Siegwart
Messenger RNA (mRNA) has recently come into focus as an emerging therapeutic class with great potential for protein replacement therapy, cancer immunotherapy, regenerative medicine, vaccines, and gene editing. However, the lack of effective and safe delivery methods impedes the broad application of mRNA-based therapeutics. Here, we report a robust approach to develop efficient polymeric delivery carriers for mRNA. Lead polyesters were identified by in vitro screening of a 480-member combinatorially modified poly(trimethylolpropane allyl ether-co-suberoyl chloride) library for the delivery of luciferase encoding mRNA (Luc mRNA) to IGROV1 cells...
November 15, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29139122/vaccination-with-human-amniotic-epithelial-cells-confer-effective-protection-in-a-murine-model-of-colon-adenocarcinoma
#16
M Tabatabaei, N Mosaffa, R Ghods, S Nikoo, S Kazemnejad, M Khanmohammadi, E Mirzadeghan, A Mahmoudi, M R Bolouri, R Falak, B Keshavarzi, M Ramezani, A H Zarnani
In spite of being the star of therapeutic strategies for cancer treatment, the results of immunotherapeutic approaches are still far from expectations. In this regard, primary prevention of cancer using prophylactic cancer vaccines has gained considerable attention. The immunologic similarities between cancer development and placentation have helped researchers to unravel molecular mechanisms responsible for carcinogenesis and to take advantage of stem cells from reproductive organs to elicit robust anti-cancer immune responses...
November 15, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29137309/anti-proliferative-and-pro-apoptotic-effects-induced-by-simultaneous-inactivation-of-her1-and-her2-through-endogenous-polyclonal-antibodies
#17
Narjara González Suárez, Gretchen Bergado Báez, Mabel Cruz Rodríguez, Amelia Gutiérrez Pérez, Lisset Chao García, Diana Rosa Hernández Fernández, Judith Raymond Pous, Belinda Sánchez Ramírez
The human epidermal growth factor receptor (HER1) and its partner HER2 are extensively described oncogenes and validated targets for cancer therapy. However, the effectiveness of monospecific therapies targeting these receptors is hampered by resistance emergence, which is frequently associated with the upregulation of other members of HER family. Combined therapies using monoclonal antibodies or tyrosine kinase inhibitors have been suggested as a promising strategy to circumvent this resistance mechanism. We propose an alternative approach based on simultaneous inactivation of HER1 and HER2 by multi-epitope blockade with specific polyclonal antibodies induced by vaccination...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137294/immunoprevention-of-kras-driven-lung-adenocarcinoma-by-a-multipeptide-vaccine
#18
Jing Pan, Qi Zhang, Shizuko Sei, Robert H Shoemaker, Ronald A Lubet, Yian Wang, Ming You
Lung cancer remains the leading cause of cancer death worldwide. Mutations in KRAS are detected in up to 30% of lung cancer cases. No effective therapies specifically targeting mutant KRAS have been developed. Vaccination against KRAS mutants is one of the venues of active exploration. The present study evaluated both immunogenicity and antitumor efficacy of a newly formulated multipeptide vaccine targeting multiple epitopes of the KRAS molecule. The formulated vaccine contained top four peptides, which elicited the strongest immunologic response and showed 100% sequence homology between human and mouse...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29135538/cervical-morbidity-in-alsace-france-results-from-a-regional-organized-cervical-cancer-screening-program
#19
Jean-Jacques Baldauf, Muriel Fender, Christine Bergeron, Emilie Marrer, Michel Velten, Pierre Pradat, Marc Arbyn
In 1994, a pilot program of cervical cancer screening was introduced in the Alsace region, France. Women aged 25-65 years were proposed to have one Pap smear every 3 years. The objective was to assess cervical morbidity in Alsace before the human papillomavirus vaccinated population reaches the age of screening. Data on cervical lesions and cancers were collected by EVE for the period September 2008 to August 2011 from existing medical services and cytopathology laboratories in Alsace. Cytological and histological data were completed with data from the two cancer registries covering the region (Bas-Rhin and Haut-Rhin)...
November 13, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29131519/displaying-tetra-membrane-spanning-claudins-on-enveloped-virus-like-particles-for-cancer-immunotherapy
#20
Irene C Schneider, Jessica Hartmann, Gundula Braun, Jörn Stitz, Thorsten Klamp, Mahjoub Bihi, Ugur Sahin, Christian J Buchholz
Virus-like particles (VLPs) displaying foreign antigens have become an important tool in vaccination including the induction of immune responses against self-antigens. Claudin 6 (CLDN6) has been identified as tumor-associated antigen and is therefore a potential target for tumor vaccination strategies. However, as tetra-membrane spanning protein its incorporation into VLPs while preserving a native fold is challenging. Here, we attempted the incorporation of a panel of engineered CLDN6 variants into the membrane of retrovirus-derived VLPs...
November 13, 2017: Biotechnology Journal
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