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Oncolytic immunotherapy

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https://www.readbyqxmd.com/read/28417936/oncolytic-alphaviruses-in-cancer-immunotherapy
#1
REVIEW
Kenneth Lundstrom
Oncolytic viruses show specific targeting and killing of tumor cells and therefore provide attractive assets for cancer immunotherapy. In parallel to oncolytic viral vectors based on adenoviruses and herpes simplex viruses, oncolytic RNA viruses and particularly alphaviruses have been evaluated as delivery vehicles. Immunization studies in experimental rodent models for various cancers including glioblastoma, hematologic, hepatocellular, colon, cervix, and lung cancer as well as melanoma have been conducted with naturally occurring oncolytic alphavirus strains such as M1 and Sindbis AR339...
April 12, 2017: Vaccines
https://www.readbyqxmd.com/read/28407327/oncolytic-viral-therapy-for-pancreatic-cancer
#2
REVIEW
Ahmad Rahal, Benjamin Musher
Outcomes of pancreatic adenocarcinoma (PDA) remain dismal despite extensive clinical investigation. Combination chemotherapy provides modest improvements in survival above best supportive care, and immunotherapy has thus far not proven effective. Nevertheless, growing insight into antitumor immunity and the tumor microenvironment has inspired the discovery of novel agents targeting PDA. Oncolytic viruses represent an emerging class of immunotherapeutic agents that have undergone extensive preclinical investigation and warrant further investigation in well-designed clinical trials...
April 13, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28387388/new-frontiers-in-oncology-immune-checkpoint-inhibitors-in-combination-therapy
#3
G Romano, A Gawlinski
Substantial progress has been achieved in recent years in the field of cancer immunotherapy, with various strategies employed to elicit a host immune response against the tumor. Monoclonal antibodies have been successfully utilized in clinical trials to block key mediators of immune checkpoint pathways, including cytotoxic T-lymphocyte antigen 4, programmed cell death protein 1 and programmed cell death 1 ligand 1. Patients with a range of malignancies have been treated in these clinical trials, and significant benefits were reported among the majority of participants...
February 2017: Drugs of Today
https://www.readbyqxmd.com/read/28361224/immunotherapy-for-esophageal-squamous-cell-carcinoma
#4
REVIEW
Takashi Kojima, Toshihiko Doi
Esophageal squamous cell carcinoma have been frustrating to treat, with slow progress made on extending survival. Immunotherapy targeting immune checkpoints, T cells, and infiltrating lymphocytes has shown promise in early studies. The efficacy of pembrolizumab and nivolumab is encouraging. Anti-chemokine receptors and oncolytic viruses are also making headway against these stubborn tumors; improved results when immune checkpoint inhibitors are combined with radiation therapy are eagerly anticipated. Adoptive T cell therapy and vaccines are also under development...
May 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28351167/talimogene-laherparepvec
#5
Patricia A Corrigan, Caroline Beaulieu, Rashmi B Patel, Denise K Lowe
OBJECTIVE: To review the efficacy and safety of talimogene laherparepvec (T-VEC) as well as its pharmacology, pharmacokinetics, drug-drug interactions, handling procedures, cost considerations, and place in therapy. DATA SOURCES: Searches of PubMed (1966 to February 2017) and Cochrane Library (1999 to February 2017) were conducted using the terms talimogene laherparepvec, T-VEC, OncoVEX, immunotherapy, melanoma, and oncolytic virus. Additional information was determined from bibliographies, manufacturer product labeling and website, meeting abstracts, Food and Drug Administration website, and clinicaltrials...
March 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28345650/rational-combination-of-oncolytic-vaccinia-virus-and-pd-l1-blockade-works-synergistically-to-enhance-therapeutic-efficacy
#6
Zuqiang Liu, Roshni Ravindranathan, Pawel Kalinski, Z Sheng Guo, David L Bartlett
Both anti-PD1/PD-L1 therapy and oncolytic virotherapy have demonstrated promise, yet have exhibited efficacy in only a small fraction of cancer patients. Here we hypothesized that an oncolytic poxvirus would attract T cells into the tumour, and induce PD-L1 expression in cancer and immune cells, leading to more susceptible targets for anti-PD-L1 immunotherapy. Our results demonstrate in colon and ovarian cancer models that an oncolytic vaccinia virus attracts effector T cells and induces PD-L1 expression on both cancer and immune cells in the tumour...
March 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28344872/intravenously-usable-fully-serotype-3-oncolytic-adenovirus-coding-for-cd40l-as-an-enabler-of-dendritic-cell-therapy
#7
Sadia Zafar, Suvi Parviainen, Mikko Siurala, Otto Hemminki, Riikka Havunen, Siri Tähtinen, Simona Bramante, Lotta Vassilev, Hongjie Wang, Andre Lieber, Silvio Hemmi, Tanja de Gruijl, Anna Kanerva, Akseli Hemminki
Vaccination with dendritic cells (DCs), the most potent professional antigen-presenting cells in the body, is a promising approach in cancer immunotherapy. However, tumors induce immunosuppression in their microenvironment that suppresses and impairs the function of DCs. Therefore, human clinical trials with DC therapy have often been disappointing. To improve the therapeutic efficacy and to overcome the major obstacles of DC therapy, we generated a novel adenovirus, Ad3-hTERT-CMV-hCD40L, which is fully serotype 3 and expresses hCD40L for induction of antitumor immune response...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28336378/optimized-biodegradable-polymeric-reservoir-mediated-local-and-sustained-co-delivery-of-dendritic-cells-and-oncolytic-adenovirus-co-expressing-il-12-and-gm-csf-for-cancer-immunotherapy
#8
Eonju Oh, Jung-Eun Oh, JinWoo Hong, YoonHo Chung, Yunki Lee, Ki Dong Park, Sungwan Kim, Chae-Ok Yun
Administration of dendritic cells (DCs) combined with oncolytic adenovirus (Ad) expressing antitumor cytokines induces a potent antitumor effect and antitumor immunity by ameliorating the immunosuppressive tumor microenvironment. However, this combination therapy has significant limitations due to rapid dissemination and inactivation of the therapeutics at the tumor site, necessitating multiple injections of both therapeutics. To overcome these limitations, we have utilized gelatin-based hydrogel to co-deliver oncolytic Ad co-expressing interleukin (IL)-12 and granulocyte-macrophage colony-stimulating factor (GM-CSF) (oAd) and DCs for sustained release of both therapeutics...
March 20, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28316007/talimogene-laherparepvec-for-treating-metastatic-melanoma-an-evidence-review-group-perspective-of-a-nice-single-technology-appraisal
#9
REVIEW
Nigel Fleeman, Adrian Bagust, Angela Boland, Sophie Beale, Marty Richardson, Ashma Krishan, Angela Stainthorpe, Ahmed Abdulla, Eleanor Kotas, Lindsay Banks, Miranda Payne
The National Institute for Health and Care Excellence (NICE) invited the manufacturer (Amgen) of talimogene laherparepvec (T-VEC) to submit clinical and cost-effectiveness evidence for previously untreated advanced (unresectable or metastatic) melanoma as part of the Institute's Single Technology Appraisal process. The Liverpool Reviews and Implementation Group (LRiG) at the University of Liverpool was commissioned to act as the Evidence Review Group (ERG). This article presents a summary of the company's submission of T-VEC, the ERG review and the resulting NICE guidance (TA410), issued in September 2016...
March 18, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/28315552/cancer-immunotherapy-an-evidence-based-overview-and-implications-for-practice
#10
Virginia Bayer, Beau Amaya, Diane Baniewicz, Colleen Callahan, Lisa Marsh, Asia S McCoy
BACKGROUND: Significant research progress has been made in immunotherapies since the mid-1990s, and this rapid evolution necessitates evidence-based education on immunotherapies, their pathophysiology, and their toxicities to provide safe, effective care.
. OBJECTIVES: The aim of this article is to provide an evidence-based overview, with implications for practice, of checkpoint inhibitors, monoclonal antibodies, oncolytic viral therapies, and chimeric antigen receptor T-cell therapies...
April 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28249932/correction-bortezomib-treatment-sensitizes-oncolytic-hsv-1-treated-tumors-to-nk-cell-immunotherapy
#11
(no author information available yet)
No abstract text is available yet for this article.
March 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28238174/combining-talimogene-laherparepvec-with-immunotherapies-in-melanoma-and-other-solid-tumors
#12
REVIEW
Reinhard Dummer, Christoph Hoeller, Isabella Pezzani Gruter, Olivier Michielin
Talimogene laherparepvec is a first-in-class intralesional oncolytic immunotherapy. In a recent Phase III trial (OPTiM), talimogene laherparepvec significantly improved durable response rate compared with subcutaneous granulocyte-macrophage colony-stimulating factor (GM-CSF). Overall response rate was also higher in the talimogene laherparepvec arm, and the greatest efficacy was demonstrated in patients with earlier-stage (IIIB, IIIC, or IVM1a) melanoma. Talimogene laherparepvec was well tolerated, with the majority (89%) of adverse events being grade 1 or 2...
February 25, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28224120/oncolytic-virotherapy-including-rigvir-and-standard-therapies-in-malignant-melanoma
#13
REVIEW
Hani M Babiker, Irbaz Bin Riaz, Muhammad Husnain, Mitesh J Borad
The treatment of metastatic melanoma has evolved from an era where interferon and chemotherapy were the mainstay of treatments to an era where immunotherapy has become the frontline. Ipilimumab (IgG1 CTLA-4 inhibitor), nivolumab (IgG4 PD-1 inhibitor), pembrolizumab (IgG4 PD-1 inhibitor) and nivolumab combined with ipilimumab have become first-line therapies in patients with metastatic melanoma. In addition, the high prevalence of BRAF mutations in melanoma has led to the discovery and approval of targeted molecules, such as vemurafenib (BRAF kinase inhibitor) and trametinib (MEK inhibitor), as they yielded improved responses and survival in malignant melanoma patients...
2017: Oncolytic Virotherapy
https://www.readbyqxmd.com/read/28159747/nk-cell-recruitment-is-necessary-for-eradication-of-peritoneal-carcinomatosis-with-an-il12-expressing-maraba-virus-cellular-vaccine
#14
Almohanad A Alkayyal, Lee-Hwa Tai, Michael A Kennedy, Christiano Tanese de Souza, Jiqing Zhang, Charles Lefebvre, Shalini Sahi, Abhirami A Ananth, Ahmad Bakur Mahmoud, Andrew P Makrigiannis, Greg O Cron, Blair Macdonald, E Celia Marginean, David F Stojdl, John C Bell, Rebecca C Auer
Despite improvements in chemotherapy and radical surgical debulking, peritoneal carcinomatosis (PC) remains among the most common causes of death from abdominal cancers. Immunotherapies have been effective for selected solid malignancies, but their potential in PC has been little explored. Here, we report that intraperitoneal injection of an infected cell vaccine (ICV), consisting of autologous tumor cells infected ex vivo with an oncolytic Maraba MG1 virus expressing IL12, promotes the migration of activated natural killer (NK) cells to the peritoneal cavity in response to the secretion of IFNγ-induced protein-10 (IP-10) from dendritic cells...
February 3, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28114253/intratumoral-approaches-for-the-treatment-of-melanoma
#15
Praveen K Bommareddy, Ann W Silk, Howard L Kaufman
There have been significant advances in the immunotherapy of melanoma over the last decade. The tumor microenvironment is now known to promote an immune-suppressive milieu that can block effective immune-mediated tumor rejection. Several novel strategies designed to overcome local immunosuppression hold promise for treatment of melanoma and other cancers. These approaches include oncolytic viruses, plasmid DNA delivery, Toll-like receptor agonists, inflammatory dyes, cytokines, checkpoint inhibitors, immunomodulatory agents, and host and pathogenic cell-based vectors...
January 2017: Cancer Journal
https://www.readbyqxmd.com/read/28074746/oncology-s-trojan-horse-using-viruses-to-battle-cancer
#16
Heena J Mavani, Jeannette Y Wick
In 2016, the American health care system was faced with more than 1.6 million new cases of cancer, and individuals older than 65 years of age will be affected disproportionately. Many older individuals are poor candidates for traditional treatments (e.g., chemotherapy, radiation) because of actual or potential treatment-related adverse events. Researchers continuously look for novel therapeutic strategies, and an exciting new one is on the horizon: virotherapy. Viruses' ability to infect and kill human cells makes them promising cancer treatments...
December 1, 2016: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/28052356/an-overview-of-the-changing-landscape-of-treatment-for%C3%A2-advanced-melanoma
#17
REVIEW
Chung-Shien Lee, Christan M Thomas, Kimberly E Ng
Melanoma-the deadliest form of skin cancer-leads to thousands of deaths each year. Although melanoma is less common than basal cell and squamous cell skin cancers, melanoma is more dangerous because it is more likely to spread to other parts of the body, such as lymph nodes, if not diagnosed and treated early. Data from the National Cancer Institute indicate a steady rise in new cases of melanoma and, unfortunately, a steady rate in the number of deaths through 2013. Ninety percent of melanomas are linked to inadequate sun protection from ultraviolet rays or the tanning habits of young adults...
March 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28004928/iterative-design-and-in-vivo-evaluation-of-an-oncolytic-antilymphoma-peptide
#18
J Johannes Eksteen, Dominik Ausbacher, Jaione Simon-Santamaria, Trine Stiberg, Cristiane Cavalcanti-Jacobsen, Imin Wushur, John S Svendsen, Øystein Rekdal
Oncolytic peptides represent a promising new strategy within the field of cancer immunotherapy. Here we describe the systematic design and evaluation of short antilymphoma peptides within this paradigm. The peptides were tested in vitro and in vivo to identify a lead compound for further evaluation as novel oncolytic immunotherapeutic. In vitro tests revealed peptides with high activity against several lymphoma types and low cytotoxicity toward normal cells. Treated lymphoma cells exhibited a reduced mitochondrial membrane potential that resulted in an irreversible disintegration of their plasma membranes...
December 22, 2016: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28002796/oncolytic-adenovirus-coexpressing-interleukin-12-and-decorin-overcomes-treg-mediated-immunosuppression-inducing-potent-antitumor-effects-in-a-weakly-immunogenic-tumor-model
#19
Eonju Oh, Il-Kyu Choi, JinWoo Hong, Chae-Ok Yun
Interleukin (IL)-12 is a potent antitumor cytokine. However, immunosuppressive tumor microenvironments containing transforming growth factor-β (TGF-β) attenuate cytokine-mediated antitumor immune responses. To enhance the efficacy of IL-12-mediated cancer immunotherapy, decorin (DCN) was explored as an adjuvant for overcoming TGF-β-mediated immunosuppression. We designed and generated a novel oncolytic adenovirus (Ad) coexpressing IL-12 and DCN (RdB/IL12/DCN). RdB/IL12/DCN-treated tumors showed significantly greater levels of interferon (IFN)-γ, tumor necrosis factor-α, monocyte chemoattractant protein-1, and IFN-γ-secreting immune cells than tumors treated with cognate control oncolytic Ad expressing a single therapeutic gene (RdB/DCN or RdB/IL12)...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27993115/virus-oncolytic-virus-and-human-prostate-cancer
#20
Guang Bin Liu, Liang Zhao, Lifang Zhang, Kong-Nan Zhao
Prostate cancer (PCa), a disease, is characterized by abnormal cell growth in the prostate - a gland in the male reproductive system. PCa is one of the leading causes of cancer death among men of all races. Although older age and a family history of the disease have been recognized as the risk factors of PCa, the cause of this cancer remains unclear. Mounting evidence suggests that infections with various viruses are causally linked to PCa pathogenesis. Published studies have provided strong evidence that at least two viruses (RXMV and HPV) contribute to prostate tumourigenicity and impact on the survival of patients with malignant PCa...
December 15, 2016: Current Cancer Drug Targets
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