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https://www.readbyqxmd.com/read/28528510/immunogenomics-using-genomics-to-personalize-cancer-immunotherapy
#1
Rance C Siniard, Shuko Harada
While the use of genomic data has the potential to revolutionize patient care, there is still much work to be done with regard to the transformation of host-tumor interactions into favorable clinical outcomes for our patients. High-throughput technologies, such as next-generation sequencing (NGS), have rapidly advanced our understanding of oncology, and we are learning that most tumors do not simply possess consistently mutated genes that are responsible for tumorigenesis, facilitating the need for personalized cancer therapy...
May 20, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28527408/subcellular-localization-based-comparative-study-on-radioresistant-bacteria-a-novel-approach-to-mine-proteins-involve-in-radioresistance
#2
Divya Vishambra, Malay Srivastava, Kamal Dev, Varun Jaiswal
Radioresistant bacteria (RRB) are among the most radioresistant organisms and has a unique role in evolution. Along with the evolutionary role, radioresistant organisms play important role in paper industries, bioremediation, vaccine development and possibility in anti-aging and anti-cancer treatment. The study of radiation resistance in RRB was mainly focused on cytosolic mechanisms such as DNA repair mechanism, cell cleansing activity and high antioxidant activity. Although it was known that protein localized on outer areas of cell play role in resistance towards extreme condition but the mechanisms/proteins localized on the outer area of cells are not studied for radioresistance...
May 10, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28527407/mechanisms-of-resistance-to-systemic-therapy-in-metastatic-castration-resistant-prostate-cancer
#3
REVIEW
Giuseppe Galletti, Benjamin I Leach, Linda Lam, Scott T Tagawa
Patients with metastatic castration-resistant prostate cancer (mCPRC) now have an unprecedented number of approved treatment options, including chemotherapies (docetaxel, cabazitaxel), androgen receptor (AR)-targeted therapies (enzalutamide, abiraterone), a radioisotope (radium-223) and a cancer vaccine (sipuleucel-T). However, the optimal treatment sequencing pathway is unknown, and this problem is exacerbated by the issues of primary and acquired resistance. This review focuses on mechanisms of resistance to AR-targeted therapies and taxane-based chemotherapy...
May 8, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28526972/patient-experiences-attitudes-and-expectations-towards-receiving-information-about-anti-tnf-medication-a-quantitative-study
#4
Jon Packham, Paul Arkell, Tom Sheeran, Ann Brownfield, Anthony Cadwgan, Sarah Ryan
The objective of the study was to measure patient attitudes and experience of information received during drug counselling for rheumatoid arthritis (RA) medications. This is a cross-sectional UK postal questionnaire study. Three RA patient groups-disease-modifying antirheumatic drugs (DMARDs) only, first anti-tumour necrosis factor (anti-TNF) and failed anti-TNF-were sent postal questionnaires. Data on patient history/demographics, drug counselling experience, knowledge of drug side effects, attitudes to vaccinations, cancer screening and blood borne virus testing was collected; 264/679 (39%) patients responded (median age 65 years, 66% female, median disease duration 15 years)...
May 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28526738/hpv-vaccine-slashes-rates-of-oral-infection
#5
(no author information available yet)
Vaccination against human papillomavirus (HPV) reduces the prevalence of oral infection by an estimated 88% among young adults in the United States, a protection that could help reduce rates of HPV-related oropharyngeal cancers, according to data that will be presented at the American Society of Clinical Oncology Annual Meeting in Chicago, IL. However, the population-level benefit will remain low unless more people get vaccinated.
May 19, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28525893/rat-embryonic-fibroblasts-immortalized-by-mrps18-2-protein-are-target-for-nk-cells
#6
Muhammad Mushtaq, Pradeepa N Pangigadde, Suhas Darekar, Erik Dissen, Elena Kashuba
Overexpression of the human mitochondrial ribosomal protein MRPS18-2 (S18-2) led to immortalization of primary rat embryonic fibroblasts (REFs). The derived cells (18IM) expressed embryonic stem cell markers. Noteworthy, genes encoding the COX family proteins were up-regulated significantly. It is known that the COX family proteins are involved in the regulation of immune response.In the present work we demonstrate that 18IM cells behave like stem cells when subjected to directed differentiation in vitro. However, unlike stem cells, 18IM cells do not develop tumors in vivo, in SCID mice...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28525447/mothers-fathers-sons-and-human-papillomavirus-immunization-practices
#7
Tami Lynn Thomas, Ora L Strickland, Melinda Higgins
Despite the fact that human papillomavirus (HPV) infection and HPV-related cancers are on the rise in men, male HPV vaccine series completion is less than 10% in many areas. This study examined parental knowledge of the HPV vaccine and intent to vaccinate their sons. A cross-sectional study of 341 parents of boys was conducted in school settings in rural southeastern Georgia. Mothers were 2.07 times more likely than fathers to vaccinate their sons. Future research directions should include strategies to increase HPV vaccination in both genders and focus on parents' perceived severity and vulnerability of their sons to HPV infection...
July 2017: Family & Community Health
https://www.readbyqxmd.com/read/28522585/herpes-simplex-virus-glycoprotein-d-targets-a-specific-dendritic-cell-subset-and-improves-the-performance-of-vaccines-to-human-papillomavirus-associated-tumors
#8
Bruna F M M Porchia, Ana Carolina R Moreno, Rodrigo N Ramos, Mariana O Diniz, Laís Helena T M de Andrade, Daniela S Rosa, José Alexandre M Barbuto, Silvia B Boscardin, Luís Carlos S Ferreira
Cervical cancer is a major public health problem and one of the leading causes of cancer deaths in women. Virtually all cases of cervical cancer, as well as a growing share of anal and head/neck tumors, are associated with human papillomavirus (HPV) infection. Despite the effectiveness, the available prophylactic vaccines do not benefit women with cervical lesions or cancer. Therefore, the search of new immunotherapeutic approaches to treat HPV-induced tumors is still a priority. The present study characterizes a therapeutic antitumor vaccine based on the genetic fusion of the Herpes simplex virus-1 (HSV-1) glycoprotein D (gD) with the E7 oncoprotein from HPV-16 (gDE7)...
May 18, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28522277/-immunotherapy-and-radiotherapy
#9
S Bockel, D Antoni, É Deutsch, F Mornex
Radiotherapy, primarily known for its cytotoxic effect on the tumor cells, via the induction of DNA damages, has the ability to induce a systemic antitumoral response. By an immunologic cell death, tumor cells exposed to radiation release a large amount of neoantigenes and pro-inflammatory mediators, acting as an in situ vaccine, resulting in an tumor regression within the primary irradiated site, but also in the distant "out of field" secondary tumors. However, this phenomenon is extremly rare with radiotherapy alone, suggesting that the radiation-induced antitumor immunity is not sufficient for overcoming the tumor's and its microenvironnement immunosuppressing effect...
May 15, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28521532/new-antivirals-for-the-treatment-of-chronic-hepatitis-b
#10
Vincent Soriano, Pablo Barreiro, Laura Benitez, Jose M Peña, Carmen de Mendoza
Current treatment with oral nucleos(t)ides entecavir or tenofovir provide sustained suppression of HBV replication and clinical benefit in most chronic hepatitis B virus (HBV) infected persons. However, HBV rebound generally occurs upon drug discontinuation due to persistence of genomic HBV reservoirs as episomic cccDNA and chromosomic integrated HBV-DNA. There is renewed enthusiasm on HBV drug discovery following recent successes with antivirals for hepatitis C and immunotherapies for some cancers. Areas covered: New drugs that target distinct steps of the HBV life cycle are been developed, including inhibitors of viral entry, new polymerase inhibitors, capsid and assembly inhibitors, virus release blockers, and disruptors of cccDNA formation and transcription...
May 18, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28521477/t-cell-immunity-induced-by-a-bivalent-salmonella-based-ceacam6-and-4-1bbl-vaccines-in-a-rat-colorectal-cancer-model
#11
Chunhui Jin, Xiaoqing Duan, Yingying Liu, Jianhong Zhu, Ke Zhang, Yuanting Zhang, Tingting Xia, Yajun Fei, Jianxin Ye
The present study investigated the anti-tumor mechanisms of recombinant non-specific cross-reacting antigen (CEACAM6) and 4-1BB ligand (4-1BBL) Salmonella-based vaccines, and the effect that these vaccinations have on memory T cells and T helper (Th) cell polarization. Colon tumors were induced in rats via 1,2-dimethylhydrazine (DMH) injections. Rats were then treated with injections of attenuated Salmonella typhimurium carrying pIRES-CEACAM6, pIRES-4-1BBL or pIRES-CEACAM6-4-1BBL. In total, 4 vaccine injections, one every other week, were administered during the 8 weeks subsequent to the DMH injection...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28520854/declines-in-hpv-associated-high-grade-cervical-lesions-after-introduction-of-hpv-vaccines-in-connecticut-us-2008-2015
#12
Linda M Niccolai, James I Meek, Monica Brackney, James L Hadler, Lynn E Sosa, Daniel M Weinberger
Background: Trends in HPV-associated cervical lesions can provide an indication of vaccine impact. Our purpose was to measure trends in cervical lesions during 2008-2015 and to consider possible explanations including vaccination coverage, changes in screening for cervical cancer, and risk behaviors for acquiring HPV. Methods: Connecticut (CT) implemented mandatory reporting of cervical intraepithelial neoplasia grades 2/3 and adenocarcinoma in situ (CIN2+) in 2008...
May 17, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28515346/the-novel-complex-combination-of-alum-cpg-odn-and-hh2-as-adjuvant-in-cancer-vaccine-effectively-suppresses-tumor-growth-in-vivo
#13
Yaomei Tian, Meng Li, Chaoheng Yu, Rui Zhang, Xueyan Zhang, Rong Huang, Lian Lu, Fengjiao Yuan, Yingzi Fan, Bailing Zhou, Ke Men, Heng Xu, Li Yang
Single-component adjuvant is prone to eliciting a specific type of Th1 or Th2 response. So, the development of combinatorial adjuvants inducing a robust mixed Th1/Th2 response is a promising vaccination strategy against cancer. Here, we describe a novel combination of aluminum salts (alum), CpG oligodeoxynucleotide (CpG) and innate defense regulator peptide HH2 for improving anti-tumor immune responses. The CpG-HH2 complex significantly enhanced the production of IFN-γ, TNF-α and IL-1β, promoted the uptake of antigen and strengthened the activation of p38, Erk1/2 and NF-κB in vitro, compared to CpG or HH2 alone...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28515303/spontaneous-and-vaccine-induced-clearance-of-mus-musculus-papillomavirus-type-1-mmupv1-muspv1-infection
#14
Rosie T Jiang, Joshua W Wang, Shiwen Peng, Tsui-Chin Huang, Chenguang Wang, Fabiana Cannella, Yung-Nien Chang, Raphael P Viscidi, Simon R A Best, Chien-Fu Hung, Richard B S Roden
Mus musculus Papillomavirus1 (MmuPV1/MusPV1) induces persistent papillomas in immunodeficient mice but not common laboratory strains. To facilitate study of immune control, we sought an outbred and immune competent laboratory mouse strain in which persistent papillomas could be established. We found that challenge of SKH1 mice (Crl:SKH1-Hrhr) by scarification on their tail with MmuPV1 resulted in three clinical outcomes: 1) persistent (>2 months) papillomas (∼20%), 2) transient papillomas that spontaneously regress typically within 2 months (∼15%), 3) no visible papillomas and viral clearance (∼65%)...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28515256/opportunities-and-challenges-human-papillomavirus-and-cancer
#15
Christina S Chu, David G Pfister
Mucosal exposure to human papillomavirus (HPV) can lead to anogenital and head and neck (H&N) cancer. Vaccination at a young age can be almost 100% effective in preventing HPV infection with the viral subtypes in both men and women, at least for disease in the anogenital tract. Therapeutic strategies targeting HPV in cervical dysplasia and cancer are showing promise as well in regressing dysplasia and controlling disease. That HPV-positive H&N cancer is a different disease from HPV-negative disease, with different molecular and clinical features and prognosis, is becoming better appreciated...
May 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/28515109/updated-review-of-prevalence-of-major-risk-factors-and-use-of-screening-tests-for-cancer-in-the-united-states
#16
Ann Goding Sauer, Rebecca L Siegel, Ahmedin Jemal, Stacey A Fedewa
Much of the suffering and death from cancer could be prevented by more systematic efforts to reduce tobacco use and obesity, improve diet, and increase physical activity and use of established vaccines and screening tests. Monitoring the prevalence of cancer risk factors and preventive tests helps guide cancer prevention and early detection efforts. We provide an updated review, using data through 2015, of the prevalence of major risk factors, cancer screening, and vaccination for U.S. adults and youth. Cigarette smoking among adults decreased to 15...
May 17, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28513983/book-review-the-foundations-of-immunology-and-their-pertinence-to-medicine
#17
REVIEW
A Corthay
We are in the era cursed with overspecialization. Charles Darwin's foundational Origin of Species, published in 1859 was accessible to the broadly educated individual. Starting with this statement, Peter Bretscher in his new book aims at explaining foundational concepts of immunology to a broad public. His standpoint is that foundational ideas usually can be simply expressed. This book describes first how foundational concepts of immunology have evolved over the last two and a half centuries. The importance of self-nonself discrimination by the immune system is acknowledged and models for immunological tolerance are compared...
May 17, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/28513340/questions-about-cervical-and-breast-cancer-screening-knowledge-practice-and-outcomes-a-review-of-demographic-and-health-surveys
#18
Laura Viens, Doug Perin, Virginia Senkomago, Antonio Neri, Mona Saraiya
United Nation's Sustainable Development Goals and the World Health Organization's Global Monitoring Framework support a strong global commitment to reducing the high burden of cervical and breast cancers among low- and middle-income countries. Strategies include vaccination, screening, and early diagnosis. Population-based surveys, such as those conducted by the Demographic and Health Surveys (DHS) Program, can collect the information needed to guide cancer control efforts in a standardized comparable manner...
May 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/28512265/chaetocin-enhances-dendritic-cell-function-via-the-induction-of-heat-shock-protein-and-cancer-testis-antigens-in-myeloma-cells
#19
Manh-Cuong Vo, Thanh-Nhan Nguyen-Pham, Hyun-Ju Lee, Sung-Hoon Jung, Nu-Ri Choi, My-Dung Hoang, Hyeoung-Joon Kim, Je-Jung Lee
Dendritic cells (DC)-based vaccines are considered useful in cancer immuno-therapy, and the interactions of DC and dying tumor cells are important and promising for cancer immunotherapy. We investigated whether chaetocin could be used to induce death of myeloma cells, for loading onto DCs can affect DCs function. In this study, we show that the dying myeloma cells treated with chaetocin resulted in the induction of heat shock protein (HSP) 90, which was inhibited by antioxidant N-acetyl cysteine, and showed an increase in the expression of MAGE-A3 and MAGE-C1/CT7...
April 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28511928/rational-design-of-nanoparticles-towards-targeting-antigen-presenting-cells-and-improved-t-cell-priming
#20
Eva Zupančič, Caterina Curato, Maria Paisana, Catarina Rodrigues, Ziv Porat, Ana S Viana, Carlos A M Afonso, João Pinto, Rogério Gaspar, João N Moreira, Ronit Satchi-Fainaro, Steffen Jung, Helena F Florindo
Vaccination is a promising strategy to trigger and boost immune responses against cancer or infectious disease. We have designed, synthesized and characterized aliphatic-polyester (poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NP) to investigate how the nature of protein association (adsorbed versus entrapped) and polymer/surfactant concentrations impact on the generation and modulation of antigen-specific immune responses. The ability of the NP formulations to target dendritic cells (DC), be internalized and activate the T cells was characterized and optimized in vitro and in vivo using markers of DC activation and co-stimulatory molecules...
May 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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