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Cancer vaccines

Aparna Kalyan, Sheetal Kircher, Hiral Shah, Mary Mulcahy, Al Benson
Despite significant advances in standard of care therapies, the 5-year survival rate for metastatic colorectal cancer (CRC) remains around 12%. Immunotherapy has not provided the stellar advances in colorectal cancer that has been seen in other malignancies. Immunotherapy appears to play a pivotal role in microsatellite unstable CRC tumors where the response rates are profound. These results have led to FDA approval of pembrolizumab for MSI-H CRC tumors. Additional research into several new immune agents including IDO inhibitors, vaccine therapy and combinatorial agents are being evaluated for CRC...
February 2018: Journal of Gastrointestinal Oncology
Ari Rosenberg, Devalingam Mahalingam
Pancreatic adenocarcinoma (PAC) remains one of the leading causes of cancer-related death. Despite multiple advances in targeted and immune therapies, the 5-year survival in advanced PAC remains poor. In this review, we discuss some of the unique aspects of the tumor microenvironment (TME) in PAC that may contribute to its resistance to immune therapies, as well as opportunities to potentially overcome some of these inherent barriers. Furthermore, we discuss strategies to enable immune therapies in PAC such as cytotoxic chemotherapy and radiation therapy, cancer vaccines, cytokine based therapy, oncolytic viruses, and adoptive T-cell therapy...
February 2018: Journal of Gastrointestinal Oncology
Yoko Motokawa, Michifumi Kokubo, Nobuo Kuwabara, Ken-Ichiro Tatematsu, Hideki Sezutsu, Hideyuki Takahashi, Koichi Sakakura, Kazuaki Chikamatsu, Shigeki Takeda
Recent clinical trials with the aim of developing tumor antigen (TA)-specific cancer vaccines against a number of malignancies have focused on the identification of TAs presented by tumor cells and recognized by T cells. In the present study, the TA melanoma antigen family A4 (MAGE-A4) protein was produced using a transgenic (TG) silkworm system. Using in vitro stimulation, it was subsequently determined whether MAGE-A4 protein induced MAGE-A4-specific T cells from peripheral blood mononuclear cells of healthy donors...
March 2018: Experimental and Therapeutic Medicine
Hua Zhao, Can Xu, Xiaoli Luo, Feng Wei, Ning Wang, Huiying Shi, Xiubao Ren
Since the preclinical results about chimpanzee adenovirus serotype-68 (AdC68)-based vaccine showed an encouraging results, it reminded us that AdC68 may be a suitable cancer vaccine vector. Previous study indicated that the seroprevalence of neutralizing antibodies (NAbs) against adenovirus was different between cancer patients and healthy volunteers. Knowledge regarding the prevalence rates of AdC68 NAbs for cancer patients is lacking. Therefore, assessing the preexistence of NAbs against AdC68 in cancer patients could provide useful insights for developing future AdC68-based cancer vaccines...
2018: Frontiers in Immunology
Matthias Butter, Stefan Weiler, Luc Biedermann, Michael Scharl, Gerhard Rogler, Heike A Bischoff-Ferrari, Benjamin Misselwitz
Approximately 10-20% of inflammatory bowel disease (IBD) cases are diagnosed after 60 years of age. Due to the high prevalence of conditions mimicking IBD at older age - including bowel disease associated with non-steroidal anti-inflammatory drugs, diverticulitis, and microscopic colitis - differential diagnosis of IBD among older adults is frequently delayed. Late-onset IBD is characterized by a predominance of colonic disease and an overall milder disease course; disease progression and new intestinal manifestations are rare...
April 2018: Maturitas
Yu-Ching Tu, Yi-Jung Lin, Lir-Wan Fan, Tung-I Tsai, Hsiu-Hung Wang
The purposes of this study were to develop gain-framed (benefits of performing behaviors) and loss-framed (costs of not performing behaviors) messages and to identify the effects of these messages on human papillomavirus (HPV)-related cervical cancer awareness and vaccination intention. Self-administered questionnaires and effect-size measurements were used to evaluate the effects of the framed HPV vaccination messages delivered through multimedia. The results showed that gain-framed and loss-framed messages equally improved HPV knowledge ( d = 2...
March 1, 2018: Western Journal of Nursing Research
Adam F Sander, Pier-Luigi Lollini
No abstract text is available yet for this article.
March 21, 2018: Expert Review of Vaccines
Widodo, Nadya Veronica Margarecaesha Anyndita, Nurul Dluha, Muhaimin Rifa'i, Karimatul Himmah, Mulya Dwi Wahyuningsih
Background: Epstein-Barr virus (EBV) can cause cancer in people from around the world. There is no EBV vaccine available for use on a global scale. However, emerging evidence suggests that the epitope on the gp350/220 capsid protein may be developed into an EBV vaccine. Nevertheless, the production of small, single epitope is challenging of stability issues and possible alteration of peptide structure. In this study, a tandem epitope was developed consisting of three single epitopes, aimed to improve stability, antigenicity and preserve epitope structure...
March 2018: Heliyon
Amit A Upadhyay, Robert C Kauffman, Amber N Wolabaugh, Alice Cho, Nirav B Patel, Samantha M Reiss, Colin Havenar-Daughton, Reem A Dawoud, Gregory K Tharp, Iñaki Sanz, Bali Pulendran, Shane Crotty, F Eun-Hyung Lee, Jens Wrammert, Steven E Bosinger
B cells play a critical role in the immune response by producing antibodies, which display remarkable diversity. Here we describe a bioinformatic pipeline, BALDR (BCR Assignment of Lineage using De novo Reconstruction) that accurately reconstructs the paired heavy and light chain immunoglobulin gene sequences from Illumina single-cell RNA-seq data. BALDR was accurate for clonotype identification in human and rhesus macaque influenza vaccine and simian immunodeficiency virus vaccine induced vaccine-induced plasmablasts and naïve and antigen-specific memory B cells...
March 20, 2018: Genome Medicine
Siambi Kikete, Li Luo, Beitian Jia, Li Wang, Gregory Ondieki, Yuhong Bian
Today, cancers pose a major public health burden. Although a myriad of cancer treatments are available, only a few have achieved clinical efficacy. This is partly attributed to cancers capability to evade host immunity by converting dendritic cells (DCs) from potent stimulators to negative modulators of immunity. Dendritic cell-based immunotherapy attempts to resolve this problem by manipulating the functional characteristics of DCs. Plant-derived polysaccharides (PDPs) can stimulate the maturation of DCs conferring on them the capacity to present internalised tumorigenic antigens to naïve T cells and subsequently priming T cells to eliminate tumours...
March 19, 2018: Cytotechnology
Shelly Arora, Srinivas Sulugodu Ramachandra, Christopher Squier
Introduction: Scientific literature suggests that human papillomavirus (HPV) infection may be associated with oral squamous cell carcinoma (OSCC). However, knowledge regarding HPV-OSCC link among oral health professionals (OHP) has been insufficient. So, the aim of this study was to assess the knowledge about HPV associated OSCC among OHP working in dental faculties in Malaysia. Methodology: Ethical committee of the University approved this study. A validated, pre-tested questionnaire was sent electronically to 224 OHP...
January 2018: Journal of Oral Biology and Craniofacial Research
Chunhui Lai, Siliang Duan, Fang Ye, Xiaoqiong Hou, Xi Li, Jin Zhao, Xia Yu, Zixi Hu, Zhuoran Tang, Fengzhen Mo, Xiaomei Yang, Xiaoling Lu
PURPOSE: Dendritic cell (DC)-based cancer vaccines is a newly emerging and potent form of immune therapy. As for any new technology, there are still considerable challenges that need to be addressed. Here, we investigate the antitumor potential of a novel liposomal vaccine, M/CpG-ODN-TRP2-Lipo. METHODS: We developed a vaccination strategy by assembling the DC-targeting mannose and immune adjuvant CpG-ODN on the surface of liposomes, which were loaded with melanoma-specific TRP2180-188 peptide as liposomal vaccine...
2018: Theranostics
Maria Alejo, Laia Alemany, Omar Clavero, Beatriz Quiros, Susana Vighi, Muhieddine Seoud, Chou Cheng-Yang, Suzanne M Garland, Nuria Juanpere, Josep Lloreta, Sara Tous, Jo Ellen Klaustermeier, Wim Quint, F Xavier Bosch, Silvia de Sanjosé, Belen Lloveras
AIMS: Neuroendocrine tumors (NET) of the cervix are rare tumors with a very aggressive course. The human papillomavirus (HPV) has been linked to its etiology. The objective of this study is to describe HPV prevalence and genotype distribution of NET. METHODS AND RESULTS: Forty-nine tumors with histological neuroendocrine features were identified among 10,575 invasive cervical cancer (ICC) cases from an international study. HPV DNA detection was done using SPF10/DEIA /LiPA25 system...
March 16, 2018: Papillomavirus Research
Hoyoung Maeng, Masaki Terabe, Jay A Berzofsky
Therapeutic cancer vaccines have been a long-sought approach to harness the exquisite specificity of the immune system to treat cancer, but until recently have not had much success as single agents in clinical trials. However, new understanding of the immunoregulatory mechanisms exploited by cancers has allowed the development of approaches to potentiate the effect of vaccines by removing the brakes while the vaccines step on the accelerator. Thus, vaccines that had induced a strong T cell response but no clinical therapeutic effect may now reach their full potential...
March 16, 2018: Current Opinion in Immunology
Hui Liu, Zhenghu Jia, Chengmao Yang, Mei Song, Zhe Jing, Yapu Zhao, Zhenzhou Wu, Liqing Zhao, Dongsheng Wei, Zhinan Yin, Zhangyong Hong
Aluminum salt (Alum) is one of the most important immune adjuvants approved for use in humans, however it is not suitable for vaccination against various chronic infectious diseases and cancers for not being able to induce cell-mediated (Th1) immunity. Here, we encapsulated an Alum colloid inside β-glucan particles (GPs), which are a type of natural particles derived from the yeast glucan shells, to prepare hybrid GP-Alum (GP-Al) adjuvant particles with a very uniform size of 2-4 μm. These hybrid particles can be used to load antigen proteins through a simple mixing procedure, and can be highly specifically targeted to antigen-presenting cells (APCs) and strongly activate dendritic cells (DCs) maturation and cytokine secretion...
March 12, 2018: Biomaterials
M E Rodríguez-Ruiz, J L Perez-Gracia, I Rodríguez, C Alfaro, C Oñate, G Pérez, I Gil-Bazo, A Benito, S Inogés, A López-Diaz de Cerio, M Ponz-Sarvise, L Resano, P Berraondo, B Barbés, S Martin-Algarra, A Gúrpide, M F Sanmamed, C de Andrea, A M Salazar, I Melero
BACKGROUND: Combination immunotherapy has the potential to achieve additive or synergistic effects. Combined local injections of dsRNA analogues (mimicking viral RNA) and repeated vaccinations with tumor-lysate loaded dendritic cells shows efficacy against colon cancer mouse models. In the context of immunotherapy, radiotherapy can exert beneficial abscopal effects. PATIENTS AND METHODS: In this two-cohort pilot phase I study, 15 advanced cancer patients received two 4-week cycles of four intradermal daily doses of monocyte-derived dendritic cells preloaded with autologous tumor lysate and matured for 24h with poly-ICLC (Hiltonol), TNF-α and IFN-α...
March 14, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
Karl-Ulrich Petry, Kaatje Bollaerts, Paolo Bonanni, Margaret Stanley, Rosybel Drury, Elmar Joura, Susanne K Kjaer, Chris J L M Meijer, Didier Riethmuller, Benoit Soubeyrand, Pierre Van Damme, Xavier Bosch
BACKGROUND: The nonavalent HPV (9vHPV) vaccine is indicated for active immunisation of individuals from the age of 9 years against cervical, vulvar, vaginal and anal premalignant lesions and cancers causally related to vaccine HPV high risk types 16, 18, 31, 33, 45, 52 and 58, and to the HPV low risk types 6 and 11, causing genital warts. OBJECTIVE: To estimate the lifetime risk (up to the age of 75 years) for developing cervical cancer after vaccinating a HPV naïve girl (e...
March 19, 2018: Human Vaccines & Immunotherapeutics
Heqiang Sun, Hanmei Yuan, Ranjing Tan, Bin Li, Gang Guo, Jinyong Zhang, Haiming Jing, Yi Qin, Zhuo Zhao, Quanming Zou, Chao Wu
Helicobacter pylori has infected more than half of the world's population, causing gastritis, gastric ulcers, gastric mucosa-associated lymphoid tissue lymphoma and gastric cancer. The oral recombinant Helicobacter pylori vaccine currently used has made great progress in addressing this problem, however, its efficacy and longevity still need to be improved. Th1 and Th17 cells play essential roles in local protection against Helicobacter pylori in the stomach mucosa. Additionally, protective immunodominant antigens are the preferred for a vaccine...
February 23, 2018: Oncotarget
Zilong Hu, Yue Ma, Zhiyang Shang, Shidong Hu, Kai Liang, Wentao Liang, Xiaowei Xing, Yufeng Wang, Xiaohui Du
Monoclonal antibodies recognizing programmed death-ligand 1 (PD-L1) have been used for the clinical treatment of diverse tumor types as a form of immune checkpoint inhibitor, with a favorable therapeutic effect. Dendritic cells (DCs) are potent antigen-presenting cells that serve a pivotal role in the activation of T cells, particularly cytotoxic T lymphocytes (CTLs). DC vaccines loaded with tumor antigens, DC-CTLs and activated T cells have been revealed to be a safe and effective treatment approach against colorectal cancer within a clinical setting...
April 2018: Oncology Letters
Jan Aleksander Kraśko, Karolina Žilionytė, Adas Darinskas, Neringa Dobrovolskienė, Agata Mlynska, Svetlana Riabceva, Iosif Zalutsky, Marina Derevyanko, Vladimir Kulchitsky, Olga Karaman, Natalia Fedosova, Tatiana Vasyliyvna Symchych, Gennady Didenko, Vasyl Chekhun, Marius Strioga, Vita Pašukonienė
Immunotherapy in the form of anticancer vaccination relies on the mobilization of the patient's immune system against specific cancer antigens. Instead of focusing on an autologous cell lysate, which is not always available in clinical practice, the present study investigates vaccines utilizing xenogeneic foetal tissue that are rich in oncofoetal antigens. Lewis lung carcinoma (LLC)-challenged C57BL/6 mice were treated with either a xenogeneic vaccine made from chicken whole embryo, or a xenogeneic vaccine made from rat embryonic brain tissue, supplemented with a Bacillus subtilis protein fraction as an adjuvant...
April 2018: Oncology Letters
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