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Radiation immune cancer

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https://www.readbyqxmd.com/read/27912833/treatment-of-locally-advanced-non-small-cell-lung-cancer
#1
REVIEW
Kit Tam, Megan Daly, Karen Kelly
Locally advanced non-small cell lung cancer is a heterogeneous disease with typically poor outcomes. Select patients may benefit from the integration of surgery, whereas patients with bulky, multistation, or contralateral (N3) mediastinal involvement are managed with definitive chemoradiation. Attempts to improve outcomes through induction, consolidation, or maintenance chemotherapy or radiation dose escalation have not demonstrated a survival benefit. Current research efforts focus on the integration of novel systemic agents that exploit tumor-specific driver mutations, augment antitumor immune response, or enhance radiation sensitivity...
February 2017: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/27910826/enhancing-radiotherapy-for-lung-cancer-using-immunoadjuvants-delivered-in-situ-from-new-design-radiotherapy-biomaterials-a-preclinical-study
#2
Yao Hao, Sayeda Yasmin-Karim, Michele Moreau, Neeharika Sinha, Erno Sajo, Wilfred Ngwa
Studies show that radiotherapy of a primary tumor in combination with immunoadjuvants (IA) can result in increased survival or immune-mediated regression of metastasis outside the radiation field, a phenomenon known as abscopal effect. However, toxicities due to repeated systematic administration of IA have been shown to be a major obstacle in clinical trials. To minimize the toxicities and prime a more potent immune response, Ngwa et al have proposed that inert radiotherapy biomaterials such as fiducials could be upgraded to multifunctional ones loaded with IA for in situ delivery directly into the tumor sub-volume at no additional inconvenience to patients...
December 21, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/27908252/the-combination-of-new-immunotherapy-and-radiotherapy-a-new-potential-treatment-for-locally-advanced-non-small-cell-lung-cancer
#3
Paola Claudia Sacco, Paolo Maione, Cesare Guida, Cesare Gridelli
Lung cancer is the main reason of cancer death worldwide. About 30% of non-small-cell lung cancer (NSCLC) cases are diagnosed with locally advanced disease (stage III). This is a mixed population including patients who have far more extensive and bulky disease than others. Management of these patients continue to be a challenge; frequently, patients have both local recurrence and distant metastases in this stage and the prognosis is very poor with a 5-year overall survival estimated between 3% and 7% for inoperable disease...
December 1, 2016: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/27905089/novel-paradigm-for-immunotherapy-of-ovarian-cancer-by-engaging-prophylactic-immunity-against-hepatitis-b-virus
#4
Marek Malecki, Emily Putzer, Caroline Quach, Chaitanya Dodivenaka, Xenia Tombokan
BACKGROUND: Only eight women out of one hundred diagnosed with ovarian epithelial cancers, which progressed to the clinical stage IV, survive 10 years. First line therapies: surgery, chemotherapy, and radiation therapy inflict very serious iatrogenic consequences. Passive immunotherapy of ovarian cancers offers only low efficacy. Prophylactic and therapeutic vaccines for ovarian cancers are not available. Interestingly, prophylactic vaccines for Hepatitis B Viruses (HBV) are very effective...
December 2016: Clinical and Translational Medicine
https://www.readbyqxmd.com/read/27895640/%C3%AF-3-polyunsaturated-fatty-acids-as-immunomodulators-in-colorectal-cancer-new-potential-role-in-adjuvant-therapies
#5
REVIEW
Stefania Miccadei, Roberta Masella, Anna Maria Mileo, Sandra Gessani
Diet composition may affect the onset and progression of chronic degenerative diseases, including cancer, whose pathogenesis relies on inflammatory processes. Growing evidence indicates that diet and its components critically contribute to human health, affecting the immune system, secretion of adipokines, and metabolic pathways. Colorectal cancer (CRC) is one of the leading causes of death worldwide. Antineoplastic drugs are widely used for CRC treatment, but drug resistance and/or off-target toxicity limit their efficacy...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27893434/neuroinflammatory-and-cognitive-consequences-of-combined-radiation-and-immunotherapy-in-a-novel-preclinical-model
#6
Gwendolyn J McGinnis, David Friedman, Kristina H Young, Eileen Ruth S Torres, Charles R Thomas, Michael J Gough, Jacob Raber
BACKGROUND: Cancer patients often report behavioral and cognitive changes following cancer treatment. These effects can be seen in patients who have not yet received treatment or have received only peripheral (non-brain) irradiation. Novel treatments combining radiotherapy (RT) and immunotherapy (IT) demonstrate remarkable efficacy with respect to tumor outcomes by enhancing the proinflammatory environment in the tumor. However, a proinflammatory environment in the brain mediates cognitive impairments in other neurological disorders and may affect brain function in cancer patients receiving these novel treatments...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27888430/radiation-exposure-in-diagnostic-imaging-wisdom-and-prudence-but-still-a-lot-to-understand
#7
Paolo Tomà, Vittorio Cannatà, Elisabetta Genovese, Andrea Magistrelli, Claudio Granata
Since 2000, a series of scientific articles on CT have been raising increasing concern about the risk of radiation induced cancer in children. The alarming conclusions of some of these articles had international echo through global media, provoking widespread public concern. Actually, many of these alarming scientific publications appeared to be flawed by poor study design, but their conclusions were not openly contradicted. In US and Europe pediatric radiologists had to face a huge challenge, which brought to the Image Gently campaign and the Eurosafe initiative with the aim to rebut misinformation and to support medical radiation protection...
November 25, 2016: La Radiologia Medica
https://www.readbyqxmd.com/read/27870678/interventional-oncology-in-hepatocellular-carcinoma-progress-through-innovation
#8
Lin Mu, Julius Chapiro, Jeremiah Stringam, Jean-François Geschwind
The clinical management of hepatocellular carcinoma has evolved greatly in the last decade mostly through recent technical innovations. In particular, the application of cutting-edge image guidance has led to minimally invasive solutions for complex clinical problems and rapid advances in the field of interventional oncology. Many image-guided therapies, such as transarterial chemoembolization and radiofrequency ablation, have meanwhile been fully integrated into interdisciplinary clinical practice, whereas others are currently being investigated...
November 2016: Cancer Journal
https://www.readbyqxmd.com/read/27865134/polychromatic-light-480-3400nm-similar-to-the-terrestrial-solar-spectrum-without-its-uv-component-in-post-surgical-immunorehabilitation-of-breast-cancer-patients
#9
Natalia A Zhevago, Alexander A Zimin, Tatyana V Glazanova, Natalia I Davydova, Natalia V Bychkova, Zhanna V Chubukina, Anna I Buinyakova, Marina F Ballyuzek, Kira A Samoilova
To this day, two methods of phototherapy (PT) have been successfully used in post-surgical immunorehabilitation of patients with breast cancer (BC): intravenous laser irradiation of the patients' blood and reinfusion of lympholeukosuspension of BC patients after single irradiation with HeNe laser. The objective of this pilot experimental study was to verify the effectiveness of the percutaneous use of polychromatic visible light combined with polychromatic infrared (pVIS+pIR) radiation similar to the major components of natural solar spectrum in post-surgical management of BC patients...
November 5, 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/27856220/the-biology-of-beta-human-papillomaviruses
#10
REVIEW
Massimo Tommasino
The beta genus comprises more than 50 beta human papillomavirus (HPV) types that are suspected to be involved, together with ultraviolet (UV) irradiation, in the development of non-melanoma skin cancer (NMSC), the most common form of human cancer. Two members of the genus beta, HPV5 and HPV8, were first identified in patients with a genetic disorder, epidermodysplasia verruciformis (EV), that confers high susceptibility to beta HPV infection and NMSC development. The fact that organ transplant recipients (OTRs) with an impaired immune system have an elevated risk of NMSC raised the hypothesis that beta HPV types may also be involved in skin carcinogenesis in non-EV patients...
November 14, 2016: Virus Research
https://www.readbyqxmd.com/read/27854240/the-impact-of-chemotherapy-radiation-and-epigenetic-modifiers-in-cancer-cell-expression-of-immune-inhibitory-and-stimulatory-molecules-and-anti-tumor-efficacy
#11
REVIEW
Jessica Ann Chacon, Keith Schutsky, Daniel J Powell
Genomic destabilizers, such as radiation and chemotherapy, and epigenetic modifiers are used for the treatment of cancer due to their apoptotic effects on the aberrant cells. However, these therapies may also induce widespread changes within the immune system and cancer cells, which may enable tumors to avoid immune surveillance and escape from host anti-tumor immunity. Genomic destabilizers can induce immunogenic death of tumor cells, but also induce upregulation of immune inhibitory ligands on drug-resistant cells, resulting in tumor progression...
November 14, 2016: Vaccines
https://www.readbyqxmd.com/read/27845767/activating-autophagy-to-potentiate-immunogenic-chemotherapy-and-radiation-therapy
#12
REVIEW
Lorenzo Galluzzi, José Manuel Bravo-San Pedro, Sandra Demaria, Silvia Chiara Formenti, Guido Kroemer
Autophagy is fundamental to the maintenance of intracellular homeostasis in virtually all human cells. Accordingly, defective autophagy predisposes healthy cells to undergoing malignant transformation. By contrast, malignant cells are able to harness autophagy to thrive, despite adverse microenvironmental conditions, and to resist therapeutic challenges. Thus, inhibition of autophagy has been proposed as a strategy to kill cancer cells or sensitize them to therapy; however, autophagy is also critical for optimal immune function, and mediates cell-extrinsic homeostatic effects owing to its central role in danger signalling by neoplastic cells responding to immunogenic chemotherapy and/or radiation therapy...
November 15, 2016: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/27843208/immunotherapy-in-metastatic-prostate-cancer
#13
REVIEW
Susan F Slovin
INTRODUCTION: Prostate cancer remains a challenge as a target for immunological approaches. The approval of the first cell-based immune therapy, Sipuleucel-T for prostate cancer introduced prostate cancer as a solid tumor with the potential to be influenced by the immune system. METHODS: We reviewed articles on immunological management of prostate cancer and challenges that lie ahead for such strategies. RESULTS: Treatments have focused on the identification of novel cell surface antigens thought to be unique to prostate cancer...
October 2016: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/27836863/checkpoint-proteins-in-pediatric-brain-and-extracranial-solid-tumors-opportunities-for-immunotherapy
#14
Eric K Ring, James M Markert, G Yancey Gillespie, Gregory K Friedman
Pediatric brain and extracranial solid tumors are a diverse group of malignancies that represent almost half of pediatric cancers. Standard therapy includes various combinations of surgery, cytotoxic chemotherapy and radiation, which can be very harmful to a developing child, and survivors carry a substantial burden of long term morbidities. While these therapies have improved survival rates for children with solid tumors, outcomes still remain extremely poor for subsets of patients. Recently, immunosuppressive checkpoint molecules that negatively regulate immune cell function have been described...
November 10, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27822900/reproducibility-of-18-f-fluoromisonidazole-intratumour-distribution-in-non-small-cell-lung-cancer
#15
Milan Grkovski, Jazmin Schwartz, Andreas Rimner, Heiko Schöder, Sean D Carlin, Pat B Zanzonico, John L Humm, Sadek A Nehmeh
BACKGROUND: Hypoxic tumours exhibit increased resistance to radiation, chemical, and immune therapies. (18)F-fluoromisonidazole (FMISO) positron emission tomography (PET) is a non-invasive, quantitative imaging technique used to evaluate the presence and spatial distribution of tumour hypoxia. To facilitate the use of FMISO PET for identification of individuals likely to benefit from hypoxia-targeted treatments, we investigated the reproducibility of FMISO PET spatiotemporal intratumour distribution in patients with non-small cell lung cancer (NSCLC)...
December 2016: EJNMMI Research
https://www.readbyqxmd.com/read/27821490/suppression-of-type-i-ifn-signaling-in-tumors-mediates-resistance-to-anti-pd-1-treatment-that-can-be-overcome-by-radiotherapy
#16
Xiaohong Wang, Jonathan E Schoenhals, Ailin Li, David R Valdecanas, Huiping Ye, Fenglin Zhang, Chad Tang, Ming Tang, Chang-Gong Liu, Xiuping Liu, Sunil Krishnan, James P Allison, Padmanee Sharma, Patrick Hwu, Ritsuko Komaki, Willem W Overwijk, Daniel R Gomez, Joe Y Chang, Stephen M Hahn, Maria Angelica Cortez, James W Welsh
Immune checkpoint therapies exhibit impressive efficacy in some patients with melanoma or lung cancer, but the lack of response in most cases presses the question of how general efficacy can be improved. In addressing this question, we generated a preclinical tumor model to study anti-PD-1 resistance by in vivo passaging of Kras-mutated, p53-deficient murine lung cancer cells (p53R172HΔg/+K-rasLA1/+) in a syngeneic host exposed to repetitive dosing with anti-mouse PD-1 antibodies. PDL1 (CD274) expression did not differ between the resistant and parental tumor cells...
November 7, 2016: Cancer Research
https://www.readbyqxmd.com/read/27807870/designing-therapeutic-cancer-vaccine-trials-with-delayed-treatment-effect
#17
Zhenzhen Xu, Boguang Zhen, Yongsoek Park, Bin Zhu
Arming the immune system against cancer has emerged as a powerful tool in oncology during recent years. Instead of poisoning a tumor or destroying it with radiation, therapeutic cancer vaccine, a type of cancer immunotherapy, unleashes the immune system to combat cancer. This indirect mechanism-of-action of vaccines poses the possibility of a delayed onset of clinical effect, which results in a delayed separation of survival curves between the experimental and control groups in therapeutic cancer vaccine trials with time-to-event endpoints...
November 2, 2016: Statistics in Medicine
https://www.readbyqxmd.com/read/27795534/immune-checkpoint-inhibitors-targeting-programmed-cell-death-1-pd-1-in-cancer-therapy
#18
Ryusuke Hatae, Kenji Chamoto
Immune checkpoint inhibitors, especially anti-programmed cell death-1 (PD-1) antibodies, have revolutionized cancer therapy. A PD-1 antibody, nivolumab, was the first of these agents to be approved by the Pharmaceuticals and Medical Devices Agency (PMDA) of Japan, as a new cancer drug for melanoma, in July 2014. While PD-1 mAb therapy has so far been approved only for untreated malignant melanomas and non-small cell lung cancer, many clinical studies on various types of cancer have been conducted worldwide...
2016: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/27780661/high-intensity-focused-ultrasound-and-radiation-therapy-induced-immuno-modulation-comparison-and-potential-opportunities
#19
REVIEW
Roberta Cirincione, Federica Maria Di Maggio, Giusi Irma Forte, Luigi Minafra, Valentina Bravatà, Laura Castiglia, Vincenzo Cavalieri, Giovanni Borasi, Giorgio Russo, Domenico Lio, Cristina Messa, Maria Carla Gilardi, Francesco Paolo Cammarata
In recent years, high-intensity focused ultrasound (HIFU) has emerged as a new and promising non-invasive and non-ionizing ablative technique for the treatment of localized solid tumors. Extensive pre-clinical and clinical studies have evidenced that, in addition to direct destruction of the primary tumor, HIFU-thermoablation may elicit long-term systemic host anti-tumor immunity. In particular, an important consequence of HIFU treatment includes the release of tumor-associated antigens (TAAs), the secretion of immuno-suppressing factors by cancer cells and the induction of cytotoxic T lymphocyte (CTL) activity...
October 22, 2016: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/27777769/clinical-significance-of-tumor-infiltrating-lymphocytes-in-breast-cancer
#20
Sasha E Stanton, Mary L Disis
Tumor infiltrating lymphocytes (TIL) play an essential role in mediating response to chemotherapy and improving clinical outcomes in all subtypes of breast cancer. Triple negative breast cancers (TN) are most likely to have tumors with >50 % lymphocytic infiltrate, termed lymphocyte predominant breast cancer, and derive the greatest survival benefit from each 10 % increase in TIL. The majority of HER2(+) breast cancers have similar level of immune infiltrate as TN breast cancer yet the presence of TILs has not shown the same survival benefit...
2016: Journal for Immunotherapy of Cancer
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