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Artificial Cells, Nanomedicine, and Biotechnology

Sania Naz, Hira Shahzad, Attarad Ali, Muhammad Zia
Breast cancer is a group of diseases with various subtypes and leads to high mortality throughout the globe. Various conventional techniques are in practice to cure breast cancer but these techniques are linked with various shortcomings. Mostly these treatments are not site directed and cause toxicity towards normal cells. In order to overcome these issues, we need smart system that can deliver anticancer drugs to specific sites. Targeted drug delivery can be achieved via passive or active drug delivery using nanocarriers...
September 15, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Wenbao Zuo, Wenjing Qu, Na Li, Rui Yu, Yanhui Hou, Yanhua Liu, Guojing Gou, Jianhong Yang
Multicomponent formulations have attracted increasing attention because of their favourable patient compliance and greater therapeutic effect. The aim of this study was to develop a multicomponent nanosuspension formulation of bufadienolides, the antitumor components of a traditional Chinese medicine, toad venom, using a wet-milling technique to improve its dissolution behaviour. Croscarmellose sodium (CCS) and sodium lauryl sulfate (SLS) were chosen as the combined stabilizers of the nanosuspension. A Taguchi orthogonal array design was used for this study to optimize the formulation and process parameters...
September 14, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Teng Guo, Yongtai Zhang, Zhe Li, Jihui Zhao, Nianping Feng
A combination method using microneedle (MN) pretreatment and nanostructured lipid carriers (NLCs) was developed to improve the transdermal delivery of therapeutics. The MN treatment of the skin and co-administration of NLCs loaded with total alkaloids isolated from Aconitum sinomontanum (AAS-NLCs) significantly increased the skin permeation of the drugs. Fluorescence imaging confirmed that MNs could provide microchannels penetrating the stratum corneum, and delivery of NLCs through the channels led to their deeper permeation...
September 12, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Neda Shajari, Sadaf Davudian, Tohid Kazemi, Behzad Mansoori, Shima Salehi, Vahid Khaze Shahgoli, Dariush Shanehbandi, Ali Mohammadi, Pascal H G Duijf, Behzad Baradaran
BACKGROUND: Cancer lethality is mainly caused by metastasis. Therefore, understanding the nature of the genes involved in this process has become a priority. BACH1, a basic leucine zipper transcription factor, has been shown to transcriptionally regulate expression of a range of genes that are associated with breast cancer metastasis. However, the exact role and the underlying molecular mechanism of BACH1 in prostate cancer remain unclear. This study aims to explore the expression of BACH1 in prostate cancer tissues and the effect of BACH1 suppression on prostate cancer cell behavior...
September 11, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Thu Bao Le, Chong Soo Han, Kyoungwon Cho, Oksoo Han
Soybean lipoxygenase, recombinant rice allene oxide synthase-1 and rice allene oxide cyclase were covalently immobilized on nanoporous rice husk silica using two types of linkers: glutardialdehyde and polyethylene glycol. The immobilization efficiency achieved using glutardialdehyde-linked rice husk silica was higher than that achieved using polyethylene glycol-linked rice husk silica (50-92% and 25-50%, respectively). Immobilization on both types of matrices significantly decreased the specific activities of the immobilized enzymes...
September 11, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Seyed Mohammad Amini, Sharmin Kharrazi, Seyed Mahdi Rezayat, Kambiz Gilani
Hyperthermia treatment of cancerous cells has been recently developed drastically with the help of nanostructures. Heating of gold nanoparticles in non-invasive radiofrequency electric field (RF-EF) is a promising and unique technique for cancer hyperthermia. However, because of differences between particles (i.e. their surface chemistry and dispersion medium) and between RF-EF sources, the research community has not reached a consensus yet. Here, we report the results of investigations on heating of gold nanoparticles and gold nanorods under RF-EF and feasibility of in-vitro cancer hyperthermia...
September 10, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Preethi Johnson, Vennila Krishnan, Chitra Loganathan, Kavitha Govindhan, Vijayan Raji, Penislusshiyan Sakayanathan, Sudha Vijayan, Palanivel Sathishkumar, Thayumanavan Palvannan
Silver nanoparticles (AgNPs) were biosynthesized using Bauhinia variegata flower extract (BVFE). The BVF-AgNPs was found to be spherical shaped with the size of 5-15 nm. The phytoconstituents analysis and FTIR spectrum indicated that bioactive compounds like, phenols, flavonoids, benzophenones, nitro compounds, aromatics and aliphatic amines from BVFE might absorb on the surface of BVF-AgNPs. The synthesized BVF-AgNPs showed potent antioxidant property and α-amylase enzyme activity inhibition. The IC50 value of BVF-AgNPs was found to be 4...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Jun Zhang, Ying Wang, Guo-Xing You, Quan Wang, Shan Zhang, Wei-Li Yu, Tao Hu, Lian Zhao, Hong Zhou
Haemoglobin-based oxygen carrier (HBOC) is highly susceptible to autoxidation that renders a series of tissue and cellular toxicities. HBOC is prepared by chemical modification of haemoglobin (Hb), which typically increases the autoxidation rate of Hb. Thus, it is necessary to decrease the autoxidation of HBOC. In the present study, two dextran-bHb conjugates (dex20-bHb and dex40-bHb) were prepared by conjugation with 20 kDa or 40 kDa dextrans, where the thiol group of Cys-93(β) was reversibly protected...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Afreen Usmani, Anuradha Mishra, Mohd Ahmad
The liver is an imperative organ of tremendous importance concerned with maintenance of metabolic functions and detoxification of exogenous and endogenous challenges like xenobiotics, viral infections and chronic alcoholism. Liver diseases particularly hepatitis B virus infections, liver cirrhosis and hepatocellular carcinoma continue to pose a significant health challenge worldwide due to the lack of therapeutic management options besides liver resection and transplantation. Hepatocellular carcinoma (HCC) is the sixth most common cancer and the third leading cause of cancer mortality worldwide...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Fatima Pashaei-Asl, Roghiyeh Pashaei-Asl, Khodadad Khodadadi, Abolfazl Akbarzadeh, Esmaeil Ebrahimie, Maryam Pashaiasl
BACKGROUND: Ovarian carcinoma is the most lethal cancer among all gynaecological malignancies. One of the most chemotherapy drugs used for ovarian cancer is paclitaxel which induces apoptosis. Paclitaxel has been used for many years. Similar to the most cancers this responds to chemotherapy initially but in a long run, drug resistance happens which fails the treatment procedure. Combination of chemotherapy drugs has been suggested to deal with this issue. Silibinin, a plant extraction, has been used from ancient time in traditional medicine and identified to have powerful antioxidant activity...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Shilpa Shrotriya, Nisharani Ranpise, Pournima Satpute, Bhagvat Vidhate
Irritant contact dermatitis (ICD) and hyperpigmentation are the problems associated with skin. Topical curcumin (CUR) although effective in hyperpigmentation and ICD, is a challenging molecule due to low-solubility. Encapsulation of CUR into solid lipid nanoparticles (SLNs) makes it amenable to topical dosing as their small size promotes its penetration into the skin. CUR-SLNs were prepared using Precirol ATO5 and Tween-80 by probe ultrasonication method. Further, CUR-SLNs were incorporated into Carbopol gel and investigated for ex-vivo skin permeation, skin deposition and skin irritation studies...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Zhang Peixun, Han Na, Yuhui Kou, Yin Xiaofeng, Baoguo Jiang
In terms of the clinical effect of peripheral nerve injury repair, the biological degradable conduit 2 mm small gap tubulization is far better than the traditional epineurial or perineurium neurorrhaphy. The assumption of the bi-directional induction between the central system and the terminal effector during peripheral nerve regeneration is purposed and proved in clinical by our group. The surgical approach of transferring a portion of or the whole contralateral C7 nerve to repair a part of or the whole ipsilateral brachial plexus injury is clinically promoted, in which the most important idea and practice is to use the cone conduit designed by the group to repair thick nerves with fine nerves...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Jamuna Bai Aswathanarayan, Ravishankar Rai Vittal, Umashankar Muddegowda
In the present study, nanoparticles of gold, iron oxide and zinc oxide (ZnO) were studied for cytotoxicity in the colorectal cancer cell HT 29. The metallic nanoparticles in the range of <50 and <100 nm were screened for anticancer activity by MTT assay. The nanoparticles were tested at concentrations ranging from 0.5 to 50 µg/ml. Zinc oxide exhibited significant anti-cancer activity in comparison to other nanoparticles. It had an IC50 value of 17.12 µg/ml. The mechanism of action was studied by fluorescence microscopy with acridine orange, propidium iodide and DAPI staining techniques...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Wenjing Zhang, Juan Zhang, Dejun Ding, Liping Zhang, Luis Alexandre Muehlmann, Shu-E Deng, Xuedong Wang, Wentong Li, Weifen Zhang
Selenium nanoparticles (SeNPs) have attracted increasing interest over the last decades because of their activities on redox balance in human body. However, the SeNPs tend to aggregate into large clusters, resulting in lower bioactivity, bioavailability and biocompatibility. Surface-capping agents on SeNPs play crucial roles in its stabilization and biological activity. Here, a green synthesis method for the preparation of Lycium barbarum polysaccharides capped SeNPs using green tea extracts as reductants under mild conditions, at room temperature, is reported...
September 7, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Abhishek K Sah, Amber Vyas, Preeti K Suresh, Bina Gidwani
Oral cancer includes cancer of lips, oral cavity and oropharynx. Oral cancer is the sixth most life-threatening disease affecting 65% of population. The delivery of cytotoxic chemotherapeutic anticancer drugs is a challenging task due to unfavorable properties. Both synthetic chemotherapeutic agents and herbal constituents are used in treatment of oral cancer. The purpose of present article is to overcome the limitations through concept of nanotechnology and conjugation approach. Also, it will provide better therapeutic effect and sustain long life of healthy and recovered cells...
September 7, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Hassan Ga'al, Hatem Fouad, Guofeng Mao, Jiaxin Tian, Mo Jianchu
Mosquitoes pose a threat to humans and animals, causing millions of deaths every year. Vector control by effective eco-friendly pesticides of natural origin is a serious issue that requires urgent attention. The employment of green-reducing extracts for nanoparticles biosynthesis in a rapid and single-step process represents a promising strategy. In this study, silver nanoparticles (AgNPs) were biofabricated using an essential oil of Aquilaria sinensis (AsEO) and Pogostemonis Herba essential oil of Pogostemon cablin (PcEO) in one step and cost-effective manner...
August 31, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Deliang Zeng, Xingdi Zhang, Xiao Wang, Qingfeng Huang, Jin Wen, Xinchao Miao, Lingjie Peng, Yongsheng Li, Xinquan Jiang
Mesoporous bioactive glass (MBG) is a good scaffold for bone regeneration. In this study, amino functionalized MBG (N-MBG) was used as a model scaffold to examine the effect of the scaffold to bone marrow stromal cells (BMSCs) and macrophages. The MTT results revealed that the proliferation of BMSCs from ovariectomized rabbits was enhanced by N-MBG. Compared to the control group, the expression of osteogenic genes was significantly enhanced by N-MBG, which was related to CaSR pathway. Meanwhile, the anti-inflammatory cytokines (interleukin-10 and arginase-1) were also upregulated by N-MBG stimulation compared with MBG...
August 30, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Guo-Qiang Chen, Junyu Zhang
Polyhydroxyalkanoates (PHAs), a diverse biopolyester synthesized by many bacteria as intracellular carbon and energy storage materials, have been produced in large quantity for various application researches including medical implants for approximately 30 years. It has been demonstrated by many studies that PHAs possess the required mechanical, biodegradable and tissue-compatible properties for implant applications. Very importantly, common PHA biodegradation products including oligomers and monomers are also not toxic to the cells and tissues...
August 29, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Kuldeep Rajpoot, Sunil K Jain
OBJECTIVE: Colorectal cancer (CRC) ranked second in females and third in males among all type of cancers diagnosed. About 1.4 million cases took place with 693,900 deaths in 2012. It can occur either in colon or rectum. Thus, we aimed to develop and optimize oxaliplatin (OP) loaded solid lipid nanoparticles (SLNs). MATERIALS AND METHODS: SLNs containing tristearin, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine (DSPE), Lipoid S75, and Tween 80 was developed. Box-Behnken design was applied for optimization of SLNs and optimized formulation was selected for conjugation with folic acid (FA)...
August 29, 2017: Artificial Cells, Nanomedicine, and Biotechnology
Neeraj Kumar, Ravi Tomar, Apurva Pandey, Vartika Tomar, Vimal Kishor Singh, Ramesh Chandra
Even after huge strides in medicine, cancer continues to be a formidable disease, which is slated to become the leading cause of death worldwide. The present study investigates the 1,3-benzodioxole and its propargyl ether derivatives as a novel histone deacetylase enzyme inhibitor in order to cure cancer, as aberrant expression of histone deacetylases (HDACs) is associated with carcinogenesis. Bioinformatics approaches were employed to carry out preclinical and pharmacological evaluations of designed benzodioxole derivatives...
August 28, 2017: Artificial Cells, Nanomedicine, and Biotechnology
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