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https://www.readbyqxmd.com/read/28229976/immune-modulation-by-dendritic-cell-based-cancer-vaccines
#1
Chaitanya Kumar, Sakshi Kohli, Poonamalle Parthasarathy Bapsy, Ashok Kumar Vaid, Minish Jain, Venkata Sathya Suresh Attili, Bandana Sharan
The interplay between host immunity and tumour cells has opened the possibility of targeting tumour cells by modulation of the human immune system. Cancer immunotherapy involves the treatment of a tumour by utilizing the recombinant human immune system components to target the pro-tumour microenvironment or by revitalizing the immune system with the ability to kill tumour cells by priming the immune cells with tumour antigens. In this review, current immunotherapy approaches to cancer with special focus on dendritic cell (DC)-based cancer vaccines are discussed...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28226194/melatonin-systemically-ameliorates-drought-stress-induced-damage-in-medicago-sativa-plants-by-modulating-nitro-oxidative-homeostasis-and-proline-metabolism
#2
Chrystalla Antoniou, Giannis Chatzimichail, Rafaella Xenofontos, Giannis Pavlou, Evangelia Panagiotou, Anastasis Christou, Vasileios Fotopoulos
Recent reports have uncovered the multifunctional role of melatonin in plant physiological responses under optimal and sub-optimal environmental conditions. In this study, we explored whether melatonin pretreatment could provoke priming effects in alfalfa (Medicago sativa L.) plants subsequently exposed to prolonged drought stress (7 days), by withholding watering. Results revealed that the rhizospheric application of melatonin (10 μM) remarkably enhanced the drought tolerance of alfalfa plants, as evidenced by the observed plant tolerant phenotype, as well as by the higher levels of chlorophyll fluorescence and stomatal conductance, compared with non-treated drought-stressed plants...
February 22, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28216948/averrhoa-bilimbi-linn-a-review-of-its-ethnomedicinal-uses-phytochemistry-and-pharmacology
#3
REVIEW
Alhassan Muhammad Alhassan, Qamar Uddin Ahmed
Averrhoa bilimbi Linn. is principally cultivated for medicinal purposes in many tropical and subtropical countries of the world. Literature survey about this plant shows that A. bilimbi is mainly used as a folk medicine in the treatment of diabetes mellitus, hypertension, and as an antimicrobial agent. The prime objective of this review is to accumulate and organize literature based on traditional claims and correlate those with current findings on the use of A. bilimbi in the management of different ailments...
October 2016: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/28216902/feeble-antipyretic-analgesic-and-anti-inflammatory-activities-were-found-with-regular-dose-4-o-%C3%AE-d-glucosyl-5-o-methylvisamminol-one-of-the-conventional-marker-compounds-for-quality-evaluation-of-radix-saposhnikoviae
#4
Jing-Ming Yang, Hua Jiang, Hong-Liang Dai, Zi-Wei Wang, Gui-Zhi Jia, Xiang-Cai Meng
INTRODUCTION: 4'-O-β-D-glucosyl-5-O-methylvisamminol (GML) is a conventional marker compound for quality control of Radix Saposhnikoviae. Despite that, neither pharmacodynamic or pharmacokinetic information is available with regard to GML. As such, the aim of thisstudy was to assess the conventional evaluation indices for the quality of Radix Saposhnikoviae. MATERIALS AND METHODS: Pyretic animal model, hot plate test, and ear edema model were established to evaluate and compare the antipyretic, analgesic, and anti-inflammatory effect of the chromone derivativescimifugin, prime-O-glucosylcimifugin (PGCN), and GML in Radix Saposhnikoviae...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28215531/smac-mimetics-to-therapeutically-target-iap-proteins-in-cancer
#5
S Fulda
Inhibitor of Apoptosis (IAP) proteins are overexpressed in a variety of human cancers. Therefore, they are considered as promising targets for the design of therapeutic strategies. Smac mimetics mimic the endogenous mitochondrial protein Smac that antagonizes IAP proteins upon its release into the cytosol. Multiple preclinical studies have documented the ability of Smac mimetics to either directly induce cell death of cancer cells or to prime them to agents that trigger cell death. At present, several Smac mimetics are being evaluated in early clinical trials...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28208020/graphene-oxide-induced-perturbation-to-plasma-membrane-and-cytoskeletal-meshwork-sensitize-cancer-cells-to-chemotherapeutic-agents
#6
Jianqiang Zhu, Ming Xu, Ming Gao, Zhihong Zhang, Yong Xu, Tian Xia, Sijin Liu
The outstanding physicochemical properties endow graphene materials (e.g., graphene oxide, GO) with beneficial potentials in diverse biomedical fields such as bioimaging, drug delivery, and biomolecular detection. GO recently emerged as a chemosensitizer; however, the detailed molecular basis underlying GO-conducted sensitization and corresponding biological effects are still elusive. Based on our recent findings that GO treatment at sublethal concentrations could impair the general cellular priming state, including disorders of plasma membrane and cytoskeleton construction, we aimed here to explore the mechanism of GO as a sensitizer to make cancer cells more susceptible to chemotherapeutic agents...
February 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28195289/mechanisms-of-absorption-and-desorption-of-co2-by-molten-nano3-promoted-mgo
#7
Seung-Ik Jo, Young-In An, Kang-Yeong Kim, Seo-Yeong Choi, Jin-Su Kwak, Kyung-Ryul Oh, Young-Uk Kwon
In order to realize carbon capture and sequestration (CCS), a technology proposed to circumvent the global warming problem while maintaining the present level of economic activity, the development of efficient carbon-capturing agents is of prime importance. In addition to the prevailing amine-based agents that operate at temperatures lower than 200 °C, agents that can operate at higher temperatures are being considered to reduce the cost of CCS. For the mid-temperature (200-500 °C) operation, alkali nitrate-promoted MgO is a promising candidate; whose detailed reaction mechanisms are not yet fully understood, however...
February 14, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28182330/heat-shock-protein-27-hsp27-hspb1-is-synthetic-lethal-to-cells-with-oncogenic-activation-of-met-egfr-and-braf
#8
John David Konda, Martina Olivero, Daniele Musiani, Simona Lamba, Maria Flavia Di Renzo
The small Heat Shock Protein of 27 KDa (HSP27) is highly expressed in many cancers and is associated with aggressive tumor behaviour, metastasis, poor prognosis and resistance to chemotherapy. We aimed at assessing the role of HSP27 in modulating responses to target therapies. We selected several oncogene-addicted cancer cell lines, which undergo either cell cycle blockade or cell death in response to agents that target the specific oncogene. Surprisingly, HSP27 suppression alone resulted in the apoptotic death of MET-addicted EBC-1 lung cancer cells, EGFR-addicted colorectal carcinoma DiFi cells and BRAF-addicted colorectal carcinoma COLO205 and OXCO-1 and melanoma COLO741 cells, all of which also undergo death when treated with the specific targeted agent...
February 9, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28179907/a-dna-vaccine-formulated-with-chemical-adjuvant-provides-partial-protection-against-bovine-herpes-virus-infection-in-cattle
#9
Valeria Quattrocchi, Ivana Soria, Cecilia Ana Langellotti, Victoria Gnazzo, Mariela Gammella, Dadin P Moore, Patricia I Zamorano
Bovine herpesvirus-1 (BoHV-1) is the causative agent of bovine infectious rhinotracheitis, an important disease worldwide. Although conventional BoHV-1 vaccines, including those based on the use of modified live virus and also inactivated vaccines, are currently used in many countries, they have several disadvantages. DNA vaccines have emerged as an attractive approach since they have the potential to induce both humoral and cellular immune response; nevertheless, it is largely known that potency of naked DNA vaccines is limited...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28178658/prime-boost-immunization-by-both-dna-vaccine-and-oncolytic-adenovirus-expressing-gm-csf-and-shrna-of-tgf-%C3%AE-2-induces-anti-tumor-immune-activation
#10
So Young Kim, Dongxu Kang, Hye Jin Choi, Yeonsoo Joo, Joo-Hang Kim, Jae J Song
A successful DNA vaccine for the treatment of tumors should break established immune tolerance to tumor antigen. However, due to the relatively low immunogenicity of DNA vaccines, compared to other kinds of vaccines using live virus or protein, a recombinant viral vector was used to enhance humoral and cellular immunity. In the current study, we sought to develop a novel anti-cancer agent as a complex of DNA and oncolytic adenovirus for the treatment of malignant melanoma in the C57BL/6 mouse model. MART1, a human melanoma-specific tumor antigen, was used to induce an increased immune reaction, since a MART1-protective response is required to overcome immune tolerance to the melanoma antigen MelanA...
February 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28173708/synthesis-and-in-vitro-anti-proliferative-activity-of-some-novel-isatins-conjugated-with-quinazoline-phthalazine-hydrazines-against-triple-negative-breast-cancer-mda-mb-231-cells-as-apoptosis-inducing-agents
#11
Wagdy M Eldehna, Hadia Almahli, Ghada H Al-Ansary, Hazem A Ghabbour, Mohamed H Aly, Omnia E Ismael, Abdullah Al-Dhfyan, Hatem A Abdel-Aziz
Treatment of patients with triple-negative breast cancer (TNBC) is challenging due to the absence of well- defined molecular targets and the heterogeneity of such disease. In our endeavor to develop potent isatin-based anti-proliferative agents, we utilized the hybrid-pharmacophore approach to synthesize three series of novel isatin-based hybrids 5a-h, 10a-h and 13a-c, with the prime goal of developing potent anti-proliferative agents toward TNBC MDA-MB-231 cell line. In particular, compounds 5e and 10g were the most active hybrids against MDA-MB-231 cells (IC50 = 12...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28153512/paclitaxel-releasing-mesenchymal-stromal-cells-inhibit-in-vitro-proliferation-of-human-mesothelioma-cells
#12
Francesco Petrella, Valentina Coccè, Carla Masia, Martina Milani, Emanuela Omodeo Salè, Giulio Alessandri, Eugenio Parati, Francesca Sisto, Francesca Pentimalli, Anna T Brini, Augusto Pessina, Lorenzo Spaggiari
INTRODUCTION: Malignant pleural mesothelioma (MPM) is a rare fatal asbestos-related malignancy originating in the mesothelial cells of the pleura. A platinum-based doublet containing a third-generation antifolate is the front-line standard of care whilst there are no approved second-line treatments for MPM which remains a disease setting to test the efficacy of new therapeutic agents. METHODS: Bone marrow mesenchymal stromal cells (BM-MSCs) were loaded with pemetrexed (PMX) and paclitaxel (PTX) according to a standardized procedure...
March 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28152014/apigenin-selective-ck2-inhibitor-increases-ikaros-expression-and-improves-t-cell-homeostasis-and-function-in-murine-pancreatic-cancer
#13
Nadine Nelson, Karoly Szekeres, Cristina Iclozan, Ivannie Ortiz Rivera, Andrew McGill, Gbemisola Johnson, Onyekachi Nwogu, Tomar Ghansah
Pancreatic cancer (PC) evades immune destruction by favoring the development of regulatory T cells (Tregs) that inhibit effector T cells. The transcription factor Ikaros is critical for lymphocyte development, especially T cells. We have previously shown that downregulation of Ikaros occurs as a result of its protein degradation by the ubiquitin-proteasome system in our Panc02 tumor-bearing (TB) mouse model. Mechanistically, we observed a deregulation in the balance between Casein Kinase II (CK2) and protein phosphatase 1 (PP1), which suggested that increased CK2 activity is responsible for regulating Ikaros' stability in our model...
2017: PloS One
https://www.readbyqxmd.com/read/28149332/the-immunomodulatory-anticancer-agent-rrx-001-induces-an-interferon-response-through-epigenetic-induction-of-viral-mimicry
#14
Hongjuan Zhao, Shoucheng Ning, Rosalie Nolley, Jan Scicinski, Bryan Oronsky, Susan J Knox, Donna M Peehl
BACKGROUND: RRx-001, a dinitroazetidine derivative, is a novel anticancer agent currently in phase II clinical trials. It mediates immunomodulatory effects either directly through polarization of tumor associated macrophages or indirectly through vascular normalization and increased T-lymphocyte infiltration. With multiple additional mechanisms of action including upregulation of oxidative stress, depletion of GSH and NADPH, anti-angiogenesis and epigenetic modulation, RRx-001 is being studied as a radio- and chemo-sensitizer to resensitize tumors to prior therapy and to prime tumors to respond to radiation, chemotherapy and immunotherapy in combination therapy studies...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28148802/recombinant-isfahan-virus-and-vesicular-stomatitis-virus-vaccine-vectors-provide-durable-multivalent-single-dose-protection-against-lethal-alphavirus-challenge
#15
Farooq Nasar, Demetrius Matassov, Robert L Seymour, Theresa Latham, Rodion V Gorchakov, Rebecca M Nowak, Grace Leal, Stefan Hamm, John H Eldridge, Robert B Tesh, David K Clarke, Scott C Weaver
: The demonstrated clinical efficacy of a recombinant vesicular stomatitis virus (rVSV) vaccine vector has stimulated the investigation of additional serologically distinct Vesiculovirus vectors as therapeutic and/or prophylactic vaccine vectors to combat emerging viral diseases. Amongst these viral threats are encephalitic alphaviruses, Venezuelan and eastern equine encephalitic viruses (VEEV, EEEV), which have demonstrated potential for natural disease outbreaks, yet no licensed vaccines are available in the event of an epidemic...
February 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28135152/agents-of-law-psychoanalytic-perspective-on-parenthood-practices-as-socially-accepted-violence
#16
Efrat Even-Tzur, Uri Hadar
This paper presents a theoretical model of parental authority from the vantage point of parental subjecthood, using a roughly Lacanian formulation of what it means to take a (parental) subject position. For Freud, the parental role involves the acceptance of social rules that may, at times, involve a socially acceptable degree of violence. Nevertheless, psychoanalytic discussions have disregarded the parents' subjective experience as agents of the Law and purveyors of threatening authority. The authors elaborate on Freud's and Lacan's ideas and delineate several prime types of parental identifications as agents of Law...
February 2017: Psychoanalytic Review
https://www.readbyqxmd.com/read/28135072/priming-of-azabicycle-biosynthesis-in-the-azinomycin-class-of-antitumor-agents
#17
Shogo Mori, Keshav K Nepal, Gilbert T Kelly, Vasudha Sharma, Dinesh Simkhada, Vishruth Gowda, Dioscar Delgado, Coran M H Watanabe
The biosynthesis of the azabicyclic ring system of the azinomycin family of antitumor agents represents the "crown jewel" of the pathway and is a complex process involving at least 14 enzymatic steps. This study reports on the first biosynthetic step, the inroads, in the construction of the novel aziridino [1,2-a]pyrrolidine, azabicyclic core, allowing us to support a new mechanism for azabicycle formation.
February 6, 2017: Biochemistry
https://www.readbyqxmd.com/read/28129345/withania-somnifera-root-extract-enhances-chemotherapy-through-priming
#18
Aine Brigette Henley, Ling Yang, Kun-Lin Chuang, Meliz Sahuri-Arisoylu, Li-Hong Wu, S W Annie Bligh, Jimmy David Bell
Withania somnifera extracts are known for their anti-cancerous, anti-inflammatory and antioxidative properties. One of their mechanisms of actions is to modulate mitochondrial function through increasing oxidative stress. Recently 'priming' has been suggested as a potential mechanism for enhancing cancer cell death. In this study we demonstrate that 'priming', in HT-29 colon cells, with W. somnifera root extract increased the potency of the chemotherapeutic agent cisplatin. We have also showed the W. somnifera root extract enhanced mitochondrial dysfunction and that the underlying mechanism of 'priming' was selectively through increased ROS...
2017: PloS One
https://www.readbyqxmd.com/read/28109622/genetics-for-the-identification-of-lipid-targets-beyond-pcsk9
#19
REVIEW
Linda R Wang, Robert A Hegele
From studies of rare families to genome-wide associations in populations, understanding of human genetics has accelerated the search for new drug targets for the prevention of atherosclerotic cardiovascular disease. DNA sequencing and genome-wide analyses of DNA markers have illuminated rare as well as common variants in genes that regulate lipids and ultimately atherosclerosis risk. A recent innovative approach called Mendelian randomization can endorse specific genes and variants as causative not just for lipid disturbances, but also for clinical cardiovascular end points...
March 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28094343/t-oligo-primed-polymerase-chain-reaction-top-pcr-a-robust-method-for-the-amplification-of-minute-dna-fragments-in-body-fluids
#20
Yu-Shin Nai, Tzu-Han Chen, Yu-Feng Huang, Mohit K Midha, Hsin-Chieh Shiau, Chen-Yang Shen, Chien-Jen Chen, Alice L Yu, Kuo Ping Chiu
Body fluid DNA sequencing is a powerful noninvasive approach for the diagnosis of genetic defects, infectious agents and diseases. The success relies on the quantity and quality of the DNA samples. However, numerous clinical samples are either at low quantity or of poor quality due to various reasons. To overcome these problems, we have developed T oligo-primed polymerase chain reaction (TOP-PCR) for full-length nonselective amplification of minute quantity of DNA fragments. TOP-PCR adopts homogeneous "half adaptor" (HA), generated by annealing P oligo (carrying a phosphate group at the 5' end) and T oligo (carrying a T-tail at the 3' end), for efficient ligation to target DNA and subsequent PCR amplification primed by the T oligo alone...
January 17, 2017: Scientific Reports
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