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https://www.readbyqxmd.com/read/28528212/targeted-co-delivery-of-polypyrrole-and-rapamycin-by-trastuzumab-conjugated-liposomes-for-combined-chemo-photothermal-therapy
#1
Hanh Thuy Nguyen, Tuan Hiep Tran, Raj Kumar Thapa, Cao Dai Phung, Beom Soo Shin, Jee-Heon Jeong, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
Trastuzumab is a therapeutic monoclonal antibody that selectively recognizes HER2/neu receptor for targeting breast cancers. In this study, we aimed to present a strategy to combine chemo and phototherapy and targeted delivery via monoclonal antibody for enhanced anticancer effects. We co-loaded a chemotherapeutic agent, rapamycin, and a photosensitizer, polypyrrole, in trastuzumab-conjugated liposomes (LRPmAb) for combined chemo-photothermal therapy. LRPmAb had small size (172.2±9.6nm), narrow distribution, and negative ζ-potential (-12...
May 17, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28526832/identification-of-a-novel-chalcone-derivative-that-inhibits-notch-signaling-in-t-cell-acute-lymphoblastic-leukemia
#2
Mattia Mori, Luca Tottone, Deborah Quaglio, Nadezda Zhdanovskaya, Cinzia Ingallina, Marisa Fusto, Francesca Ghirga, Giovanna Peruzzi, Maria Elisa Crestoni, Fabrizio Simeoni, Francesca Giulimondi, Claudio Talora, Bruno Botta, Isabella Screpanti, Rocco Palermo
Notch signaling is considered a rational target in the therapy of several cancers, particularly those harbouring Notch gain of function mutations, including T-cell acute lymphoblastic leukemia (T-ALL). Although currently available Notch-blocking agents are showing anti-tumor activity in preclinical studies, they are not effective in all the patients and often cause severe side-effects, limiting their widespread therapeutic use. Here, by functional and biological analysis of the most representative molecules of an in house library of natural products, we have designed and synthetized the chalcone-derivative 8 possessing Notch inhibitory activity at low micro molar concentration in T-ALL cell lines...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522586/antitumor-synergism-and-enhanced-survival-with-a-tumor-vasculature-targeted-enzyme-prodrug-system-rapamycin-and-cyclophosphamide
#3
John J Krais, Needa Virani, Partick H McKernan, Quang Nguyen, Kar-Ming Fung, Vassilios I Sikavitsas, Carla D Kurkjian, Roger G Harrison
Mutant cystathionine gamma-lyase was targeted to phosphatidylserine exposed on tumor vasculature through fusion with annexin A1 or annexin A5.  Cystathionine gamma-lyase E58N, R118L, and E338N mutations impart non-native methionine gamma-lyase activity, resulting in tumor-localized generation of highly toxic methylselenol upon systemic administration of non-toxic selenomethionine.  The described therapeutic system circumvents systemic toxicity issues using a novel drug delivery/generation approach and avoids the administration of non-native proteins and/or DNA required with other enzyme prodrug systems...
May 18, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28516792/apoptosis-of-colon-cancer-cells-under-the-effect-of-geldanamycin-derivate
#4
F Kosova, Z Kasar, I Tuglu, F Ozdal Kurt, S Gok, Z Ari, T Imren
AIM: The apoptotic effect of geldanamycin derivative may be important for the colorectal cancer therapy. The mechanisms of apoptosis require understanding of the behavior of colon cancer cell line Colo-205 which mimics colon adenocarcinoma. Therefore, the effect of IC50 dose of 17-allylamino-17-demethoxygeldanamycin (17-AAG) on the colon cancer cells in vitro was studied for its anti-apoptotic activity. METHOD: Apoptotic ratio of the Colo-205 cells was determined after 17-AAG application with terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining and apoptosis related genes...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28516508/near-infrared-photodynamic-inactivation-of-s-pneumoniae-and-its-interaction-with-raw-264-7-macrophages
#5
Ilaiáli S Leite, Mariana C Geralde, Ana C G Salina, Alexandra I Medeiros, Lívia N Dovigo, Vanderlei S Bagnato, Natalia M Inada
Pneumonia is the main cause of children mortality worldwide, and its major treatment obstacle stems from the microorganisms increasing development of resistance to several antibiotics. Photodynamic therapy has been presenting, for the last decades, promising results for some subtypes of cancer and infections. In this work we aimed to develop a safe and efficient in vitro protocol for photodynamic inactivation of Streptococcus pneumoniae, one of the most commonly found bacteria in pneumonia cases, using two near-infrared light sources and indocyanine green, a FDA approved dye...
May 18, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28516202/-plastic-reconstruction-of-radiation-injuries
#6
P M Vogt, T R Mett, C Henkenberens, C Radtke, R Ipaktchi
In addition to surgical and drug therapy, radiotherapy (or radiation therapy) is one of the three mainstays of modern oncological therapy regimes. It uses ionizing radiation to control tumors by damaging the DNA of cancerous tissue leading to cellular death. Although advances have been made in recent years resulting in a reduced dosage to the surrounding tissues, radiation injuries and tissue-related side effects cannot be completely avoided. Knowledge of the pathophysiology, treatment modalities and interdisciplinary treatment approaches are essential for effective therapy whilst limiting side effects...
May 17, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28516182/intracellular-accumulation-and-immunological-responses-of-lipid-modified-magnetic-iron-nanoparticles-in-mouse-antigen-processing-cells
#7
Chenmeng Qiao, Jun Yang, Lei Chen, Jie Weng, Xin Zhang
Understanding the effects of magnetic iron nanoparticles (MINPs) on the immune response is vitally important for biomedical applications such as cancer therapy, disease diagnosis and novel cancer imaging. In this study, lipid modified MINPs were designed and prepared by introducing the neutral lipid DSPE-PEG or the zwitterionic lipid DSPE-PCB into hydrophobic MINPs through hydrophobic interaction (L-MINPs and ZL-MINPs, respectively). The effect of L-MINPs and ZL-MINPs on the intracellular accumulation and immune responses of three kinds of antigen processing cells was examined...
May 18, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28514874/oncolytic-recombinant-vesicular-stomatitis-virus-vsv-is-nonpathogenic-and-non-transmissible-in-pigs-a-natural-host-of-vsv
#8
Lauro Velazquez-Salinas, Shruthi Naik, Steven Pauszek, Kah-Whye Peng, Stephen J Russell, Luis Rodriguez
Vesicular stomatitis virus (VSV) is a negative-stranded RNA virus that naturally causes disease in livestock including horses, cattle and pigs. The two main identified VSV strains are the New Jersey (VSNJV) and Indiana (VSIV) strains. VSV is a rapidly replicating, potently immunogenic virus that has been engineered to develop novel oncolytic therapies for cancer treatment. Swine are a natural host for VSV and provide a relevant and well-established model, amenable to biological sampling to monitor virus shedding and neutralizing antibodies...
May 17, 2017: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/28514737/integration-of-phytochemicals-and-phytotherapy-into-cancer-precision-medicine
#9
REVIEW
Thomas Efferth, Mohamed E M Saeed, Elhaj Mirghani, Awadh Alim, Zahir Yassin, Elfatih Saeed, Hassan E Khalid, Salah Daak
Concepts of individualized therapy in the 1970s and 1980s attempted to develop predictive in vitro tests for individual drug responsiveness without reaching clinical routine. Precision medicine attempts to device novel individual cancer therapy strategies. Using bioinformatics, relevant knowledge is extracted from huge data amounts. However, tumor heterogeneity challenges chemotherapy due to genetically and phenotypically different cell subpopulations, which may lead to refractory tumors. Natural products always served as vital resources for cancer therapy (e...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28511988/exploring-the-potential-of-nanotherapeutics-in-targeting-tumor-microenvironment-for-cancer-therapy
#10
REVIEW
Eameema Muntimadugu, Nagavendra Kommineni, Wahid Khan
Advanced research in the field of cancer biology clearly demonstrated the key role of tumor microenvironment (TME) in cancer development and metastasis particularly in solid tumors. Components of TME, being non-neoplastic in nature provide supportive and permissive conditions for the growth of cancer cells. Hence it is important to modify TME in cancer therapy and this would be achieved by better understanding of TME morphological features and functioning of stromal components. Nanotechnology based drug delivery offers various advantages such as prolonged circulation time, delivery of cargo at desired site, improved bioavailability, reduced toxicity etc...
May 13, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28509572/effect-of-silibinin-loaded-nano-niosomal-coated-with-trimethyl-chitosan-on-mirnas-expression-in-2d-and-3d-models-of-t47d-breast-cancer-cell-line
#11
Seyede Elmira Yazdi Rouholamini, Saeid Moghassemi, Zahra Maharat, Amirhossien Hakamivala, Susan Kashanian, Kobra Omidfar
Silibinin is a natural flavonoid with a strong antioxidant property and weak cytotoxic activity. It has demonstrated anti-tumoural activity against many types of malignancies; however, due to its hydrophobic structure, it has poor water solubility, bioavailability and permeability across intestinal epithelial cells. To improve the effect of silibinin, we have vehiculated silibinin by a highly stable niosomal nanostructure based on a Span 60/cholesterol (CH)/N-trimethyl chitosan (TMC) system in order to study its potential application for the delivery of silibinin in T47D cultured under three-dimensional (3D) and two-dimensional (2D) conditions...
May 16, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28507799/characterization-of-a-human-anti-tumoral-nk-cell-population-expanded-after-bcg-treatment-of-leukocytes
#12
Eva M García-Cuesta, Gloria Esteso, Omodele Ashiru, Sheila López-Cobo, Mario Álvarez-Maestro, Ana Linares, Mei M Ho, Luis Martínez-Piñeiro, Hugh T Reyburn, Mar Valés-Gómez
Immunotherapy, via intra-vesical instillations of BCG, is the therapy of choice for patients with high-risk non-muscle invasive bladder cancer. The subsequent recruitment of lymphocytes and myeloid cells, as well as the release of cytokines and chemokines, is believed to induce a local immune response that eliminates these tumors, but the detailed mechanisms of action of this therapy are not well understood. Here, we have studied the phenotype and function of the responding lymphocyte populations as well as the spectrum of cytokines and chemokines produced in an in vitro model of human peripheral blood mononuclear cells (PBMCs) co-cultured with BCG...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28506803/peg-coated-and-doxorubicin-loaded-multimodal-gadolinium-oxide-nanoparticles-for-simultaneous-drug-delivery-and-imaging-applications
#13
Shailja Kumar, Virendra Kumar Meena, Puja Panwar Hazari, Rakesh Kumar Sharma
We report water-in-oil microemulsion mediated synthesis of polyethylene glycol (PEG(1)) coated Gd2O3 nanoparticles (NPs(2)) loaded with fluorescent anti-cancer drug doxorubicin (dox(3)) for synchronous drug delivery, optical and magnetic resonance (MR(4)) imaging applications. These PEG covered Gd2O3 NPs loaded with dox (Gd-PEG-dox NPs) were found to possess spherical morphology with 13nm size as measured from TEM and the hydrodynamic diameter comes out to be 37nm as determined from DLS. Fluorescence spectra and fluorescence microscopy images confirmed optical activity of the NPs...
May 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28506076/nos2-as-an-emergent-player-in-progression-of-cancer
#14
Douglas D Thomas, David A Wink
Though the inducible form of nitric oxide synthase (NOS2) was initially shown to be a major player as an anti-tumor component of the immune response, more recent data has shown that NOS2 expression in cancer cells often predicts poor outcome. Unlike growth factors associated with a single oncogenic pathway, nitric oxide (NO) has a ubiquitous nature where it simultaneously mediates major oncogenic pathways from Akt/PI3K and RAS/ERK to HIF1a and TGFb. These interactive loops perpetuate oncogenic mechanism that lead to increased cancer stemness, proliferation metastasis, chemoresistance, angiogenesis, and immunosuppression...
May 15, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28505195/dose-escalation-study-to-evaluate-safety-tolerability-and-efficacy-of-intravenous-etoposide-phosphate-administration-in-27-dogs-with-multicentric-lymphoma
#15
Pierre Boyé, François Serres, Laurent Marescaux, Juliette Hordeaux, Emmanuel Bouchaert, Bruno Gomes, Dominique Tierny
Comparative oncology has shown that naturally occurring canine cancers are of valuable and translatable interest for the understanding of human cancer biology and the characterization of new therapies. This work was part of a comparative oncology project assessing a new, clinical-stage topoisomerase II inhibitor and comparing it with etoposide in dogs with spontaneous lymphoma with the objective to translate findings from dogs to humans. Etoposide is a topoisomerase II inhibitor widely used in various humans' solid and hematopoietic cancer, but little data is available concerning its potential antitumor efficacy in dogs...
2017: PloS One
https://www.readbyqxmd.com/read/28504613/chlpmab-23-cancer-specific-human-mouse-chimeric-anti-podoplanin-antibody-exhibits-antitumor-activity-via-antibody-dependent-cellular-cytotoxicity
#16
Mika K Kaneko, Takuro Nakamura, Akiko Kunita, Masashi Fukayama, Shinji Abe, Yasuhiko Nishioka, Shinji Yamada, Miyuki Yanaka, Noriko Saidoh, Kanae Yoshida, Yuki Fujii, Satoshi Ogasawara, Yukinari Kato
Podoplanin is expressed in many cancers, including oral cancers and brain tumors. The interaction between podoplanin and its receptor C-type lectin-like receptor 2 (CLEC-2) has been reported to be involved in cancer metastasis and tumor malignancy. We previously established many monoclonal antibodies (mAbs) against human podoplanin using the cancer-specific mAb (CasMab) technology. LpMab-23 (IgG1, kappa), one of the mouse anti-podoplanin mAbs, was shown to be a CasMab. However, we have not shown the usefulness of LpMab-23 for antibody therapy against podoplanin-expressing cancers...
May 15, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28503952/hyaluronic-acid-polyethylene-glycol-nanoparticles-for-controlled-delivery-of-mitoxantrone
#17
Azam Sargazi, Naeem Kamali, Fereshteh Shiri, Mostafa Heidari Majd
Hyaluronic acid (HA) has inherent ability to target the CD44 receptors and internalize into tumour cells via receptor-mediated endocytosis. Therefore, conjugation of this natural linear polysaccharide to polymeric NPs or micelles, as one of the most promising approaches, could be useful for future clinical applications such as drug delivery. Accordingly, we report on the synthesis of mitoxantrone (MTX)-conjugated polymeric nanoparticles (NPs) composed of polyethylene glycol-HA (PEG-HA) for MTX delivery toward special tumour cells...
May 14, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28503090/compounds-from-celastraceae-targeting-cancer-pathways-and-their-potential-application-in-head-and-neck-squamous-cell-carcinoma-a-review
#18
REVIEW
Camila Hernandes, Ana Maria Soares Pereira, Patricia Severino
Squamous cell carcinoma of the head and neck is one of the most common cancer types worldwide. It initiates on the epithelial lining of the upper aerodigestive tract, at most instances as a consequence of tobacco and alcohol consumption. Treatment options based on conventional therapies or targeted therapies under development have limited efficacy due to multiple genetic alterations typically found in this cancer type. Natural products derived from plants often possess biological activities that may be valuable in the development of new therapeutic agents for cancer treatment...
February 2017: Current Genomics
https://www.readbyqxmd.com/read/28502786/randomized-evaluation-of-cognitive-behavioral-therapy-and-graded-exercise-therapy-for-post-cancer-fatigue
#19
Carolina X Sandler, David Goldstein, Sarah Horsfield, Barbara K Bennett, Michael Friedlander, Patricia A Bastick, Craig R Lewis, Eva Segelov, Frances M Boyle, Melvin T M Chin, Kate Webber, Benjamin K Barry, Andrew R Lloyd
OBJECTIVE: To evaluate the outcomes of a randomized controlled trial, which assigned patients with post-cancer fatigue (PCF) to education, or 12-weeks of integrated cognitive-behavioral therapy (CBT) and graded exercise therapy (GET). METHODS: Three months post treatment for breast or colon cancer, eligible patients had: clinically-significant fatigue; no co-morbid medical or psychiatric conditions which explained the fatigue; and no evidence of recurrence. The CBT/GET arm included individually tailored consultations at approximately two weekly intervals...
May 11, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28501851/implementing-liquid-biopsies-into-clinical-decision-making-for-cancer-immunotherapy
#20
REVIEW
Dagmar Quandt, Hans D Zucht, Arno Amann, Anne Wulf-Goldenberg, Carl Borrebaeck, Michael Cannarile, Diether Lambrechts, Herbert Oberacher, James Garrett, Tapan Nayak, Michael Kazinski, Charles Massie, Heidi Schwarzenbach, Michele Maio, Robert Prins, Björn Wendik, Richard Hockett, Daniel Enderle, Mikkel Noerholm, Hans Hendriks, Heinz Zwierzina, Barbara Seliger
During the last decade, novel immunotherapeutic strategies, in particular antibodies directed against immune checkpoint inhibitors, have revolutionized the treatment of different malignancies leading to an improved survival of patients. Identification of immune-related biomarkers for diagnosis, prognosis, monitoring of immune responses and selection of patients for specific cancer immunotherapies is urgently required and therefore areas of intensive research. Easily accessible samples in particular liquid biopsies (body fluids), such as blood, saliva or urine, are preferred for serial tumor biopsies...
April 24, 2017: Oncotarget
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