Folate-targeted nanostructured chitosan/chondroitin sulfate complex carriers for enhanced delivery of bortezomib to colorectal cancer cells

In this study, we successfully incorporated a hydrophobic drug, bortezomib (Bor), into folic acid (FA)-conjugated Cs/Chs self-assembled NPs (Bor/Cs/Chs-FA) for colorectal cancer therapy. The particle size and polydispersity index of Bor/Cs/Chs-FA were ∼196.5 ± 1.2 nm and ∼0.21 ± 0.5, respectively. A pH-dependent release profile was observed, facilitating cancer cell-targeted drug release under an acidic tumor microenvironment. Moreover, in vitro data revealed enhanced cellular uptake and apoptosis in folate receptor-expressing colorectal cancer cells (HCT-116 and HT-29) as compared to that in lung cancer cells (A549), which do not express folate receptors. Furthermore, intravenous administration of Bor/Cs/Chs-FA in a HCT-116 bearing xenograft mouse model showed that the NPs were a safe and effective drug delivery system. The results suggest that folate-targeted nanoparticle can be effectively applied for efficient chemotherapy of colorectal cancer.Graphical Abstract
Source: Asian Journal of Pharmaceutical Sciences - Category: Drugs & Pharmacology Source Type: research

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Work by theNanotechnology Characterization Laboratory (NCL), a joint initiative of NCI, NIST, and the FDA, has led to the discovery of a novel combination chemotherapy. This combination is shown to have synergistic effects on cytotoxicity to cancer cells in vitro, and to cause a substantial decrease in tumor growth in preclinical tumor models in vivo. Combination therapy using these agents may enhance the response rate of different cancers to these drugs and may significantly reduce side effects by permitting a lower therapeutic dose to be administered. SAIC Frederick'' s Nanotechnology Characterization   Laboratory&n...
Source: NIH OTT Licensing Opportunities - Category: Research Authors: Source Type: research
Authors: Wu L, Yang L Abstract As a non-histone chromatin-associated protein, high-mobility group box-1 (HMGB1) performs a pivotal function in various human diseases, including autoimmune diseases, neurodegenerative diseases and cancer. Overexpression of HMGB1 has been demonstrated in numerous types of cancer, including breast cancer, colorectal cancer, lung cancer and hepatocellular carcinoma. However, the underlying mechanism of HMGB1 function in lung cancer remains to be elucidated. The present study aimed to analyze, and summarize the role and mechanism of HMGB1 in lung cancer by retrieving available literature...
Source: Oncology Letters - Category: Cancer & Oncology Tags: Oncol Lett Source Type: research
Publication date: 25 March 2018 Source:International Journal of Pharmaceutics, Volume 539, Issues 1–2 Author(s): Arivalagan Pugazhendhi, Thomas Nesakumar Jebakumar Immanuel Edison, Indira Karuppusamy, Brindhadevi Kathirvel Cancer is an abnormal condition leading to uncontrolled cell division which causes damage to the body tissues. Around 100 types of cancer are studied so far namely breast cancer, lung cancer, skin cancer, prostate cancer, colon cancer and lymphoma. Major cancer therapies include chemotherapy, surgery and radiations but their major drawbacks are non-specifically distributed antitumor agents, uneven...
Source: International Journal of Pharmaceutics - Category: Drugs & Pharmacology Source Type: research
CONCLUSION Cognitive impairment can affect daily functioning, quality of life, and capacity to work in patients with cancer and those in remission. Consequently, cognitive assessment is now an important and necessary part of a comprehensive oncological care plan. Cancer-related cognitive impairment might be due to the direct effects of the cancer itself, nonspecific factors, or comorbid conditions that are independent of the disease and/or due to the adverse effects of the treatment or combination of treatments given for the disease. The prevalence and extent of cognitive impairment associated with cancer is recognized but...
Source: Innovations in Clinical Neuroscience - Category: Neuroscience Authors: Tags: Cognition Current Issue Neuro oncology Neurology Review cancer chemotherapy cognitive impairment neuropsychological assessment treatment Source Type: research
Disrupting Tumor Angiogenesis and "the Hunger Games" for Breast Cancer. Adv Exp Med Biol. 2017;1026:171-195 Authors: Zhou Z, Yao H, Hu H Abstract Angiogenesis, one of the hallmarks of cancers, has become an attractive target for cancer therapy since decades ago. It is broadly thought that upregulation of angiogenesis is involved in tumor progression and metastasis. Though tumor vessels are tortuous, disorganized, and leaky, they deliver oxygen and nutrients for tumor development. Based on this knowledge, many kinds of drugs targeting angiogenesis pathways have been developed, such as bevacizu...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
Cancer patients who opt for alternative therapy instead of conventional medicine significantly decrease their chances of survival, according to researchers at Yale School of Medicine. Although the popularity of alternative medicine continues to grow, a recent study published in the Journal of the National Cancer Institute found survival rates significantly reduced for those who use it as first-line therapy. Conventional cancer treatments — chemotherapy, surgery and radiation — still produce a much better chance of survival. Mesothelioma was not included in the study, but the findings are relevant to this rare ...
Source: Asbestos and Mesothelioma News - Category: Environmental Health Authors: Tags: acupuncture cancer Alternative medicine alternative mesothelioma treatment alternative therapy survival alternative vs conventional medicine breast cancer colon cancer Conventional cancer treatments Dr. David Gorski Dr. Skyler Johnson Source Type: news
In this study we demonstrate the use of clustered regularly interspaced short palindromic repeats (CRISPR)-based epigenome editing to alter cell response to inflammatory environments by repressing inflammatory cytokine cell receptors, specifically TNFR1 and IL1R1. This has applications for many inflammatory-driven diseases. It could be applied for arthritis or to therapeutic cells that are being delivered to inflammatory environments that need to be protected from inflammation." In chronic back pain, for example, slipped or herniated discs are a result of damaged tissue when inflammation causes cells to create ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
PD Abstract High-quality genomic analysis is critical for personalized pharmacotherapy in patients with cancer. Tumor-specific genomic alterations can be identified in cell-free DNA (cfDNA) from patient blood samples and can complement biopsies for real-time molecular monitoring of treatment, detection of recurrence, and tracking resistance. cfDNA can be especially useful when tumor tissue is unavailable or insufficient for testing. For blood-based genomic profiling, next-generation sequencing (NGS) and droplet digital PCR (ddPCR) have been successfully applied. The US Food and Drug Administration (FDA) recently ...
Source: Clinical Colorectal Cancer - Category: Cancer & Oncology Authors: Tags: Crit Rev Clin Lab Sci Source Type: research
Abstract PURPOSE: The current shift in site of care from community oncology practices to the hospital outpatient department to deliver oncology services may have significant implications for the economic and clinical outcomes of cancer care. Therefore, this study compares health care use and costs among patients with cancer receiving intravenous (IV) chemotherapy in physician offices (PO) versus in hospital outpatient settings (HOP). METHODS: This retrospective study, which was based on medical and pharmacy claims data, included patients (age, 18 to 64 years) initiating IV chemotherapy/biologic treatment betw...
Source: JOP - Category: Gastroenterology Authors: Tags: J Oncol Pract Source Type: research
Question: What do WhatsApp and a little-known (until recently) cancer research startup named Stemcentrx have in common? Answer: They're the top two largest private venture-backed acquisitions in history, after pharmaceutical giant AbbVie acquired the drug company earlier this month in a deal that values it at as high as $10 billion. (Facebook acquired WhatsApp in 2014 for $19 billion.) Not bad for a company that has yet to bring a product to market. What Stemcentrx (pronounced "stem-centrix") does have, however, is a unique -- and somewhat controversial -- approach to treating several forms of cancer. While ...
Source: Science - The Huffington Post - Category: Science Source Type: news
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