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R-L Luan, P-C Wang, M-X Yan, J Chen
OBJECTIVE: Multidrug resistance and toxicity significantly compromise the therapeutic efficacy for sarcomas. We aimed at evaluating the effect of lutein-doxorubicin (DOX) combinatorial therapy on inhibiting S180 (Sarcoma 180) cell proliferation and tumor growth. MATERIALS AND METHODS: S180 cells in logarithmic growth phase were treated with lutein, DOX, or lutein-DOX combinatorial therapy for 48 h. The cell survival rate was determined by MTT assay. Apoptosis was detected by flow cytometry...
March 2018: European Review for Medical and Pharmacological Sciences
M S Eng, J Kaur, L Prasmickaite, B Ø Engesæter, A Weyergang, E Skarpen, K Berg, M G Rosenblum, G M Mælandsmo, A Høgset, S Ferrone, P K Selbo
Triple-negative breast cancer (TNBC) and malignant melanoma are highly aggressive cancers that widely express the cell surface chondroitin sulfate proteoglycan 4 (CSPG4/NG2). CSPG4 plays an important role in tumor cell growth and survival and promotes chemo- and radiotherapy resistance, suggesting that CSPG4 is an attractive target in cancer therapy. In the present work, we applied the drug delivery technology photochemical internalization (PCI) in combination with the novel CSPG4-targeting immunotoxin 225...
March 22, 2018: Photochemical & Photobiological Sciences
Octavia Ramayanti, Mitch Brinkkemper, Sandra A W M Verkuijlen, Leni Ritmaleni, Mei Lin Go, Jaap M Middeldorp
Epstein-Barr virus (EBV) persists in nasopharyngeal (NPC) and gastric carcinomas (EBVaGC) in a tightly latent form. Cytolytic virus activation (CLVA) therapy employs gemcitabine and valproic acid (GCb+VPA) to reactivate latent EBV into the lytic phase and antiviral valganciclovir to enhance cell death and prevent virus production. CLVA treatment has proven safe in phase-I/II trials with promising clinical responses in patients with recurrent NPC. However, a major challenge is to maximize EBV lytic reactivation by CLVA...
March 22, 2018: Cancers
Zahra Fakhroueian, Rouhollah Vahabpour, Mehdi Assmar, Alireza Massiha, Afshin Zahedi, Pegah Esmaeilzadeh, Fatemeh Katouzian, Sara Rezaei, Peyman Keyhanvar, Alireza Mozafari Dehshiri
Nanoformulations derived from fine porous ZnO quantum dot nanoparticles (QD NPs) can offer strong potential medical applications; especially in cancer therapy. ZnO QD NPs was synthesized by sol-gel hydrothermal process, fast cold quenching and further smart surface functionalization methods to obtain ultrasmall size (1-4 nm) NPs. ZnO nanopolymer, a wetting agent, PEG co-solvent and water/oil emulsion stabilizer were considered in our nanofluid formulation. The resulting nanofluid was characterized by SEM, FTIR, photoluminescence, band gap energy, zeta potential and UV-Vis spectroscopy...
March 22, 2018: Artificial Cells, Nanomedicine, and Biotechnology
Bamigboye J Taiwo, Olujide O Olubiyi, Fanie R van Heerden
Nigerian medicinal plants have been demonstrated to be veritable source of lead compounds for drug discovery efforts. One such example is mangiferin. Mangiferin was originally isolated from the Nigerian plant Ceiba pentandra (Mombacaceae), after which its structure was elucidated with the aid of spectroscopy. Mangiferin, a xanthone glycoside, has also been reported in certain other plant families including Gentianaceae and Anacardiaceae. In certain other climes and different parts of the world, folkloric and traditional medicine has extensively employed Mangifera indica (another source of mangiferin) in treating different diseases...
March 20, 2018: Current Computer-aided Drug Design
Shazia Shah, Arshia, Nida Siraj Kazmi, Almas Jabeen, Aisha Faheem, Nida Dastagir, Tariq Ahmed, Khalid Mohammed Khan, Shakil Ahmed, Abeer Raza, Shahnaz Perveen
BACKGROUND: Inflammation is defined as the response of immune system cells to damaged or injured tissues The major symptoms of inflammation include increased blood flow, cellular influx, edema, elevated cellular metabolism, reactive oxygen species (ROS) nitric oxide (NO) and vasodilation. This normally protective mechanism against harmful agents when this normal mechanism becomes dysregulated that can cause serious illnesses including ulcerative colitis, Crohn's disease, rheumatoid arthritis, osteoarthritis, sepsis, and chronic pulmonary inflammation ...
March 21, 2018: Medicinal Chemistry
Brian J Doyle, Temitope O Lawal, Tracie D Locklear, Lorraina Hernandez, Alice L Perez, Udeshi Patel, Shitalben Patel, Gail B Mahady
CONTEXT: Pimenta dioica (L.) Merr. (Myrtaceae) is used in Costa Rican traditional medicine for women's health. Our previous work showed that P. dioica extracts were oestrogenic. OBJECTIVES: This work identifies phytochemicals from P. dioica that are responsible for the plant's oestrogen-like activities. MATERIALS AND METHODS: P. dioica leaves were collected in Costa Rica in 2005. Fractions resulting from chromatographic separation of a methanol extract were tested at 50 μg/mL in a competitive oestrogen receptor-binding assay...
December 2018: Pharmaceutical Biology
Gabriella Fabbrocini, Antonio Cristaudo, Marius-Anton Ionescu, Luigia Panariello, Geraldine Robert, Marcello Pellicano, Fabio Ayala
BACKGROUND: Many cytotoxic and biological drugs are cause of severe dermatological side effects, such as hand-foot syndrome (HFS) and hand-foot skin reaction (HFSR). Oncologic patients with HFS or HFSR presents relevant symptoms that interferes with daily activities and with adherence to anticancer treatment. The HFRS control and treatment are important goals to enhance the quality of life of oncologic patients. The aim of this study was to assess the efficacy and tolerability of a b...
April 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
Rikke B Holmstrøm, Ditte V Mogensen, Jørn Brynskov, Mark A Ainsworth, Jacob Nersting, Kjeld Schmiegelow, Casper Steenholdt
BACKGROUND: Interactions between thiopurines and infliximab presumably contribute to superior effect of infliximab-thiopurine combination therapy in patients with inflammatory bowel disease (IBD). We examined whether principal cytotoxic thiopurine metabolites influence adalimumab (ADL) and anti-ADL antibodies (Abs). METHODS: Ninety-eight IBD patients previously treated with infliximab (96%) in whom trough ADL and anti-ADL Abs had been assessed as part of their clinical care were included...
March 21, 2018: Digestive Diseases and Sciences
Tatiana V Beketova, Mikhail Y Volkov, Evgeniy A Naryshkin, Tatiana M Novoselova, Evgeniy L Nasonov
Recent advances in pharmacology have greatly expanded the drug repertoire for treatment of anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis. Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare multisystemic disorder, a type of the ANCA-associated vasculitis. Important features of this disease are eosinophilia and anti-myeloperoxidase ANCA presence in around 30-70% of patients. Primary therapy of EGPA includes steroids and cytotoxic drugs, e.g., cyclophosphamide, azathioprine, or methotrexate...
March 21, 2018: Clinical Rheumatology
Yuan Ou, Kai Chen, Hao Cai, Hu Zhang, Qiyong Gong, Jian Wang, Wei Chen, Kui Luo
In this study, to enhance the therapeutic function and reduce the side-effects of doxorubicin (DOX), a biodegradable N-(2-hydroxypropyl) methacrylamide (HPMA) polymer-DOX conjugate has been prepared through reversible addition fragmentation chain transfer (RAFT) polymerization and conjugation chemistry, and the anticancer agent DOX was covalently linked to the polymeric vehicle through a pH-responsive hydrazone bond. The cellular mechanisms of the conjugate were explored, and the therapeutic indexes were studied as well...
March 22, 2018: Biomaterials Science
Akbar Oghalaie, Fatemeh Kazemi-Lomedasht, Mohammad Reza Zareinejad, Delavar Shahbazzadeh
Background: Cancer is one of the major health problems worldwide. Hence, finding potent therapeutics from natural sources seems necessary. Snake venom of Vipera lebetina contains potential component with anticancer activities such as antiproliferation, migration, invasion, adhesion, and angiogenesis effect. Evaluation of cytotoxic and antiadhesive effect of V. lebetina venom on lung epithelial cancer tumor cell (TC-1) was the main aim of this study. Materials and Methods: Here, we purified snake venom of V...
October 2017: Journal of Family Medicine and Primary Care
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
Parisa Fatourachi, Behnaz Faramarziyan Azimi Maragheh, Seyede Momeneh Mohammadi, Behnaz Valipour, Alireza Dehnad, Hojjatollah Nozad Charoudeh
Aim: In this study we attempt to indicate anti-carcinogenic influence of ether extracted metabolites of Streptomyces Levis sp. on gene expression in colon cancer. Background: Colon cancer is one of the most prevalent cancers worldwide. In recent decades, researchers have been seeking the treatment for cancer. Natural products are valuable compounds with fewer side effects in comparison to chemotherapy drugs. Methods: Secondary metabolites were extracted with the inoculation of bacterial sample in Mueller Hinton Broth...
2018: Gastroenterology and Hepatology From Bed to Bench
Kristina Shilnikova, Mei Jing Piao, Kyoung Ah Kang, Yea Seong Ryu, Jeong Eon Park, Yu Jae Hyun, Ao Xuan Zhen, Yong Joo Jeong, Uhee Jung, In Gyu Kim, Jin Won Hyun
Cisplatin-based chemotherapy often results in the development of chemoresistance when used to treat ovarian cancer, which is difficult to overcome. The present study investigated the cytotoxic and anti-migratory effects of shikonin, a naphthoquinone compound, on cisplatin-resistant human ovarian cancer A2780 cells (A2780-CR). Shikonin had a potent dose-dependent cytotoxic effect on A2780-CR cells, with 9 µM shikonin treatment reducing A2780-CR cell viability by 50%, validate using an MTT assay. Shikonin induced apoptosis, as evidenced by the increased number of apoptotic bodies, following staining with Hoechst 33342, and terminal deoxynucleotidyl cell transferase dUTP nick end labeling-positive cells following treatment...
April 2018: Oncology Letters
Dereje Kebebe, Yuanyuan Liu, Yumei Wu, Maikhone Vilakhamxay, Zhidong Liu, Jiawei Li
Cancer has become one of the leading causes of mortality globally. The major challenges of conventional cancer therapy are the failure of most chemotherapeutic agents to accumulate selectively in tumor cells and their severe systemic side effects. In the past three decades, a number of drug delivery approaches have been discovered to overwhelm the obstacles. Among these, nanocarriers have gained much attention for their excellent and efficient drug delivery systems to improve specific tissue/organ/cell targeting...
2018: International Journal of Nanomedicine
Jiulong Li, Bing Tian, Tao Li, Shang Dai, Yulan Weng, Jianjiang Lu, Xiaolin Xu, Ye Jin, Renjiang Pang, Yuejin Hua
Background: Biosynthesis of noble metallic nanoparticles (NPs) has attracted significant interest due to their environmental friendly and biocompatible properties. Methods: In this study, we investigated syntheses of Au, Ag and Au-Ag bimetallic NPs using protein extracts of Deinococcus radiodurans , which demonstrated powerful metal-reducing ability. The obtained NPs were characterized and analyzed by various spectroscopy techniques. Results: The D...
2018: International Journal of Nanomedicine
Fang Bai, You Yin, Ting Chen, Jihui Chen, Meixin Ge, Yunshu Lu, Fangyuan Xie, Jian Zhang, Kejin Wu, Yan Liu
Purpose: Breast cancer is the most common cancer among women. Pemetrexed, a new generation antifolate drug, is one of the primary treatments for breast cancer. However, multidrug resistance (MDR) in breast cancer greatly hampers the therapeutic efficacy of chemotherapies such as pemetrexed. Nanomedicine is emerging as a promising alternative technique to overcome cancer MDR. Thus, pemetrexed-loaded d-alpha tocopheryl polyethylene glycol 1000 succinate (vitamin E TPGS) liposomes (liposomal pemetrexed) were developed as a strategy to overcome MDR to pemetrexed in breast cancer...
2018: International Journal of Nanomedicine
Noha M Badawi, Mahmoud H Teaima, Khalid M El-Say, Dalia A Attia, Mohamed A El-Nabarawi, Mohey M Elmazar
Background: Pomegranate extract (PE) is a natural product with potent antioxidant and anticancer activity because of its polyphenols content. The main purpose of this study was to maximize the PE chemotherapeutic efficacy by loading it in an optimized solid lipid nanoparticles (SLNs) formula. Materials and methods: The influence of independent variables, which were lipid concentration (X1 ), surfactant concentration (X2 ) and cosurfactant concentration (X3 ), on dependent ones, which were particle size (Y1 ), polydispersity index (Y2 ), zeta potential (Y3 ), entrapment efficiency (Y4 ) and cumulative % drug release (Y5 ), were studied and optimized using the Box-Behnken design...
2018: International Journal of Nanomedicine
Conglian Yang, Tingting Wu, Yuting Qin, Yan Qi, Yu Sun, Miao Kong, Xue Jiang, Xianya Qin, Yaqi Shen, Zhiping Zhang
Background: Doxorubicin (DOX) is an effective chemotherapeutic agent but severe side effects limit its clinical application. Nanoformulations can reduce the toxicity while still have various limitations, such as complexity, low drug loading capability and excipient related concerns. Methods: An amphiphilic conjugate, doxorubicin-dichloroacetate, was synthesized and the corresponding nanoparticles were prepared. The in vitro cytotoxicity and intracellular uptake, in vivo imaging, antitumor effects and systemic toxicities of nanoparticles were carried out to evaluate the therapeutic efficiency of tumor...
2018: International Journal of Nanomedicine
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