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Liposomes, cancer , pharmaceutics , drug delivery systems

Pablo Hervella, Elisa Parra, David Needham
MOTIVATION: In the field of imaging, (18)F-fluorodeoxyglucose (FDG) PET imaging allows evaluation of glucose metabolism and is the most widely used imaging agent clinically for metastatic cancer. While it can certainly detect the metastatic disease, in order to provide a more fully "individualized medicine" strategy of detection and pharmaceutical treatment, what is needed are additional imaging nanoparticles that resemble the subsequently-administered nanoparticle drug delivery system itself...
May 2016: European Journal of Pharmaceutics and Biopharmaceutics
Mahfoozur Rahman, Vikas Kumar, Sarwar Beg, Gajanand Sharma, Om Prakash Katare, Firoz Anwar
Inflammatory diseases are considered to be highly dreadful ones responsible for higher mortality in the developed countries. This includes cancer, psoriasis, rheumatoid arthritis, and inflammatory bowel disease. The tremendous strides in the area of drug development to find newer molecules like non-steroidal and steroidal agents and immunosuppressant agents delivered by conventional formulation. These therapy have enhances the life expectancy of patient, but it provide the therapeutic benefits only to a limited extent...
November 2016: Artificial Cells, Nanomedicine, and Biotechnology
Yuma Yamada
  A variety of human diseases, including neurodegenerative disorders, ischemic heart disease, diabetes, and cancer have been reported to be associated with mitochondrial dysfunction. Because of this, mitochondrial therapy is expected to be useful and productive in the treatment of such diseases. We previously reported on the development of a MITO-Porter, a liposome-based nanocarrier that permits macromolecular cargos to be delivered into mitochondria via membrane fusion. Intracellular observations using the green fluorescence protein as a model macromolecule provided confirmation that a macromolecule could be delivered to mitochondria in living cells by the MITO-Porter...
2016: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
Rakesh Raj, Pooja Mongia, Suresh Kumar Sahu, Alpana Ram
Anticancer therapies mostly depend on the ability of the bioactives to reach their designated cellular and subcellular target sites, while minimizing accumulation and side effects at non specific sites. The development of nanotechnology based drug delivery systems that are able to modify the biodistribution, tissue uptake and pharmacokinetics of therapeutic agents is considered of great importance in biomedical research and treatment therapy. Controlled releases from nanocarriers can significantly enhance the therapeutic effect of a drug...
2016: Current Drug Targets
Abolfazl Shakeri, Amirhossein Sahebkar
No abstract text is available yet for this article.
2016: Recent Patents on Drug Delivery & Formulation
Dena Tila, Saeed Ghasemi, Seyedeh Narjes Yazdani-Arazi, Saeed Ghanbarzadeh
Cancer is considered as one of the most severe health problems and is currently the third most common cause of death in the world after heart and infectious diseases. Novel therapies are constantly being discovered, developed and trialed. Many of the current anticancer agents exhibit non-ideal pharmaceutical and pharmacological properties and are distributed non-specifically throughout the body. This results in death of the both normal healthy and malignant cells and substantially leads to accruing a variety of serious toxic side effects...
July 2015: Journal of Biomaterials Applications
Gurmeet Kaur, Tarun Garg, Goutam Rath, Amit K Goyal
Archaeosomes as liposomes made with one or more ether lipids that are unique to the domain of Archaeobacteria, found in Archaea constitute a novel family of liposome. Achaean-type lipids consist of archaeol (diether) and/or caldarchaeol (tetraether) core structures. Archaeosomes can be produced using standard procedures (hydrated film submitted to sonication, extrusion and detergent dialysis) at any temperature in the physiological range or lower, therefore making it possible to encapsulate thermally stable compounds...
March 17, 2015: Drug Delivery
Patricia Severino, Tatiana Andreani, Marco V Chaud, Cibelem I Benites, Samantha C Pinho, Eliana B Souto
Essential oils have increased interest as promising ingredients for novel pharmaceutical dosage forms. These oils are reported to provide synergistic effects of their active ingredients, in parallel with their biodegradable properties. In addition, essential oils may also have therapeutic effects in diabetes, inflammation, cancer and to treat microbial infections. However, there are some physicochemical properties that may limit their use as active compounds in several formulations, such as high volatility, low-appealing organoleptic properties, low bioavailability and physicochemical instability, as result of exposure to light, oxygen and high temperatures...
2015: Current Pharmaceutical Biotechnology
Sams M A Sadat, Soodabeh Saeidnia, Adil J Nazarali, Azita Haddadi
Nanotechnology has revolutionized fundamental opportunities for higher specific drug delivery with minimum side effects. Since its inception, the goal of nanotechnology has been to advance effective and reliable systems for precise anti-cancer therapy and diagnosis. To accomplish this goal, bio-conjugation strategies of therapeutic agents loaded nanoparticles with monoclonal antibodies or their analogues have demonstrated a targeted approach both in vitro and in vivo. In this review, we primarily focus on the specific recognition of HER2 receptors of HER2 overexpressed tumor cells, and evaluate anti-HER2 monoclonal antibody as an effective tool for active targeting...
2015: Current Cancer Drug Targets
Jiun-Wen Guo, Yu-Hsuan Lee, Hsiau-Wen Huang, Mei-Chyun Tzou, Ying-Jan Wang, Jui-Chen Tsai
Nanotechnology offers potential in pharmaceuticals and biomedical developments for improving drug delivery systems, medical imaging, diagnosis, cancer therapy, and regenerative medicine. Although there is no international regulation or legislation specifically for nanomedicine, it is agreed worldwide that considerably more attention should be paid to the quality, safety, and efficacy of nanotechnology-based drugs. The US Food and Drug Administration and the European Medicines Agency have provided several draft regulatory guidance and reflection papers to assist the development of nanomedicines...
2014: International Journal of Nanomedicine
Rogaie Rezaei-Sadabady, Akram Eidi, Nosratollah Zarghami, Abolfazl Barzegar
Quercetin (3,5,7,3',4'-pentahydroxyflavone) is a natural bio-flavonoid originating from fruits, vegetables, seeds, berries, and tea. The antioxidant activity of quercetin and its protective effects against cardiovascular disorders, anti-cancer, anti-inflammatory, and anti-viral activities have been extensively documented; however, the clinical request of quercetin in cancer treatment is significantly limited due to its very poor delivery features. In order to increase the hydrophilicity and drug delivery capability, we encapsulated quercetin into liposomes...
2016: Artificial Cells, Nanomedicine, and Biotechnology
P D Marcato, W J Fávaro, N Durán
For many years, cisplatin has been used to treat many types of cancer, including urogenital, skin and lung cancers. Unfortunately, treatment with this drug causes serious side effects, such as severe toxicity; including nephrotoxicity, neurotoxicity, gastrointestinal toxicity, peripheral neuropathy, ototoxicity, asthenia and hematological toxicity.Therefore, the clinical use of cisplatin has been hampered.The incidence of nephrotoxicity frequently prevents the use of high enough doses to maximize the antineoplastic effects, and strict attention must be given to the hydration of cisplatin-treated patients to minimize kidney damage...
2014: Current Cancer Drug Targets
Marcelo B de Jesus, Allan Radaic, Wouter L J Hinrichs, Carmen V Ferreira, Eneida de Paula, Dick Hoekstra, Inge S Zuhorn
Solid lipid nanoparticles (SLNs) are a promising system for the delivery of lipophilic and hydrophilic drugs. They consist of a solid lipid core that is stabilized by a layer of surfactants. By the incorporation of cationic lipids in the formulation, positively charged SLNs can be generated, that are suitable carriers for nucleic acids (DNA, siRNA). Considering the beneficial effect of helper lipids on the transfection efficiency with cationic liposomes, the effect of the helper lipid 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) on transfection with cationic lipid-containing solid lipid nanoparticles was investigated in PC3 prostate cancer cells...
February 2014: Journal of Biomedical Nanotechnology
Anu Puri
The field of cancer nanomedicine is considered a promising area for improved delivery of bioactive molecules including drugs, pharmaceutical agents and nucleic acids. Among these, drug delivery technology has made discernible progress in recent years and the areas that warrant further focus and consideration towards technological developments have also been recognized. Development of viable methods for on-demand spatial and temporal release of entrapped drugs from the nanocarriers is an arena that is likely to enhance the clinical suitability of drug-loaded nanocarriers...
2013: Pharmaceutics
Diego Dos Santos Ferreira, Sávia Caldeira de Araújo Lopes, Marina Santiago Franco, Mônica Cristina Oliveira
In recent years, liposomes have been employed with growing success as pharmaceutical carriers for antineoplastic drugs. One specific strategy used to enhance in vivo liposome-mediated drug delivery is the improvement of intracytoplasmic delivery. In this context, pH-sensitive liposomes (pHSLip) have been designed to explore the endosomal acidification process, which may lead to a destabilization of the liposomes, followed by a release of their contents into the cell cytoplasm. This review considers the current status of pHSLip development and its applicability in cancer treatment, focusing on the mechanisms of pH sensitivity and liposomal composition of pHSLip...
September 2013: Therapeutic Delivery
Priscila G Reis, Adriana T Abreu, Andrea G Guimarães, Mônica C Teixeira, Jacqueline de Souza, Neila M Silva-Barcellos
Arsenic and antimony compounds are used to treat endemic diseases, such as cancer, leishmaniasis, and schistosomiasis, in spite of their toxicity. Several studies seeking the development and characterization of nanocarrier systems such as liposomes are being carried out with the aim of developing new drug delivery systems and minimizing the toxicity of these drugs. However, the lack of reference methods to quantify these semimetals within a liposomal matrix hinders the QC of these formulations. Therefore, the validation of an analytical method for arsenic and antimony quantification in liposomal matrix by inductively coupled plasma-optical emission spectrometry is presented here...
July 2013: Journal of AOAC International
Sonal Gupta, Arushi Jain, Mainak Chakraborty, Jasjeet K Sahni, Javed Ali, Shweta Dang
Advent of recombinant technology in protein synthesis has given birth to a new range of biopharmaceuticals. These therapeutic peptides and proteins are now emerging as an imperative part of various treatment protocols especially in the cancer therapeutics. Despite extensive research efforts, oral delivery of therapeutic peptide or protein is still a challenge for pharmaceutical industries and researchers. Number of factors including high proteolytic activity and low pH conditions of gastrointestinal tract act as major barriers in the successful delivery of intact protein/peptide to the targeted site...
August 2013: Drug Delivery
Ruei-Min Lu, Min-Shan Chen, De-Kuan Chang, Chien-Yu Chiu, Wei-Chuan Lin, Shin-Long Yan, Yi-Ping Wang, Yuan-Sung Kuo, Chen-Yun Yeh, Albert Lo, Han-Chung Wu
Targeted delivery of drugs to tumors represents a significant advance in cancer diagnosis and therapy. Therefore, development of novel tumor-specific ligands or pharmaceutical nanocarriers is highly desirable. In this study, we utilized phage display to identify a new targeting peptide, SP90, which specifically binds to breast cancer cells, and recognizes tumor tissues from breast cancer patients. We used confocal and electron microscopy to reveal that conjugation of SP90 with liposomes enables efficient delivery of drugs into cancer cells through endocytosis...
2013: PloS One
X Cai, Z Fang, J Dou, A Yu, G Zhai
Quercetin (QC) is a typical plant flavonoid, possesses diverse pharmacologic effects including antiinflammatory, antioxidant, anti-cancer, anti-anaphylaxis effects and against aging. However, the application of QC in pharmaceutical field is limited due to its poor solubility, low bioavailability, poor permeability and instability. To improve the bioavailability of QC, numerous approaches have been undertaken, involving the use of promising drug delivery systems such as inclusion complexes, liposomes, nanoparticles or micelles, which appear to provide higher solubility and bioavailability...
July 1, 2013: Current Medicinal Chemistry
Nan Li, Cheng-Xiang Zhang, Xiao-Xing Wang, Liang Zhang, Xu Ma, Jia Zhou, Rui-Jun Ju, Xiu-Ying Li, Wei-Yu Zhao, Wan-Liang Lu
Even when faced with elimination, functional materials may offer new alternatives to expensive drugs. Once used to treat benign prostate hypertrophy, the US Food and Drug Administration (FDA) suspended the use of lonidamine due to the occurrence of liver problems arising from its poor pharmaceutical properties. The objectives of the present study were to develop targeting lonidamine liposomes in combination with targeting epirubicin liposomes to circumvent drug-resistant cancer. Evaluations were performed on A549 and drug-resistant A549cDDP lung cancer cells and drug-resistant A549cDDP xenografted BALB/c nude mice...
April 2013: Biomaterials
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