2
|
The study of hyaluronic acid compounds for neutron capture and photon activation therapies. Open Life Sci 2014. [DOI: 10.2478/s11535-014-0329-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThe therapy of radioresistant tumors remains an urgent problem in medicine. To solve this problem neutron capture therapy (NCT) and photon activation therapy (PAT) are used. The essential feature of this such technique is the uptake of tumor chemical elements, which interact with thermal neutrons (NCT) and X-rays (PAT). The aims of the investigation were to study a biodistribution of the complexes of hyaluronic acid with boron (3 mg B mL−1) and gold (20 mg Au mL−1) in mice with melanoma B-16 after intratumoral administration. An optimal time for NCT was 30 minutes after administration when boron concentration in the tumor was more than 30 μg g−1 and exceeded boron content in surrounding tissues. The maximal gold content in tumor (180–260 mg g−1) was obtained in 30 minutes after the preparation introduction. The highest ratios of gold in tumor and surrounding tissues (a necessary condition for forming of the local absorbed dose in tumor) was obtained in 0.5 and 1 h. On the basis of the data obtained, it is possible to assume the perspectives of the non-toxic boron compounds for use in NCT and the gold compounds for use primarily as contrast agents for diagnostic purposes.
Collapse
|
3
|
Goodarzi S, Pazirandeh A, Jameie SB, Khojasteh NB. Differentiation in boron distribution in adult male and female rats' normal brain: a BNCT approach. Appl Radiat Isot 2012; 70:952-6. [PMID: 22484141 DOI: 10.1016/j.apradiso.2012.03.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 03/07/2012] [Accepted: 03/15/2012] [Indexed: 11/25/2022]
Abstract
Boron distribution in adult male and female rats' normal brain after boron carrier injection (0.005 g Boric Acid+0.005 g Borax+10 ml distilled water, pH: 7.4) was studied in this research. Coronal sections of control and trial animal tissue samples were irradiated with thermal neutrons. Using alpha autoradiography, significant differences in boron concentration were seen in forebrain, midbrain and hindbrain sections of male and female animal groups with the highest value, four hours after boron compound injection.
Collapse
Affiliation(s)
- Samereh Goodarzi
- Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | | | | | | |
Collapse
|
4
|
Calderón M, Quadir MA, Sharma SK, Haag R. Dendritic polyglycerols for biomedical applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:190-218. [PMID: 20217684 DOI: 10.1002/adma.200902144] [Citation(s) in RCA: 437] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The application of nanotechnology in medicine and pharmaceuticals is a rapidly advancing field that is quickly gaining acceptance and recognition as an independent area of research called "nanomedicine". Urgent needs in this field, however, are biocompatible and bioactive materials for antifouling surfaces and nanoparticles for drug delivery. Therefore, extensive attention has been given to the design and development of new macromolecular structures. Among the various polymeric architectures, dendritic ("treelike") polymers have experienced an exponential development due to their highly branched, multifunctional, and well-defined structures. This Review describes the diverse syntheses and biomedical applications of dendritic polyglycerols (PGs). These polymers exhibit good chemical stability and inertness under biological conditions and are highly biocompatible. Oligoglycerols and their fatty acid esters are FDA-approved and are already being used in a variety of consumer applications, e.g., cosmetics and toiletries, food industries, cleaning and softening agents, pharmaceuticals, polymers and polymer additives, printing photographing materials, and electronics. Herein, we present the current status of dendritic PGs as functional dendritic architectures with particular focus on their application in nanomedicine, in drug, dye, and gene delivery, as well as in regenerative medicine in the form of non-fouling surfaces and matrix materials.
Collapse
Affiliation(s)
- Marcelo Calderón
- Organic and Macromolecular Chemistry, Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin, Germany
| | | | | | | |
Collapse
|
6
|
Genady AR, Nakamura H. Undecahydro-closo-dodecaborates as good leaving groups in organic synthesis: generation of substituted styrenes via elimination of arylethyl dodecaborates. Org Biomol Chem 2010; 8:4427-35. [DOI: 10.1039/c005032f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Afaf R Genady
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo 171-8588, Japan
| | | |
Collapse
|
7
|
Schaffran T, Burghardt A, Barnert S, Peschka-Süss R, Schubert R, Winterhalter M, Gabel D. Pyridinium Lipids with the Dodecaborate Cluster as Polar Headgroup: Synthesis, Characterization of the Physical−Chemical Behavior, and Toxicity in Cell Culture. Bioconjug Chem 2009; 20:2190-8. [DOI: 10.1021/bc900147w] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tanja Schaffran
- Department of Chemistry, University of Bremen, P.O. Box 330440, D-28357 Bremen, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, D-79104 Freiburg, and School of Science and Engineering, Jacobs University Bremen, P.O. Box 750561, D-28725 Bremen
| | - Alexander Burghardt
- Department of Chemistry, University of Bremen, P.O. Box 330440, D-28357 Bremen, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, D-79104 Freiburg, and School of Science and Engineering, Jacobs University Bremen, P.O. Box 750561, D-28725 Bremen
| | - Sabine Barnert
- Department of Chemistry, University of Bremen, P.O. Box 330440, D-28357 Bremen, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, D-79104 Freiburg, and School of Science and Engineering, Jacobs University Bremen, P.O. Box 750561, D-28725 Bremen
| | - Regine Peschka-Süss
- Department of Chemistry, University of Bremen, P.O. Box 330440, D-28357 Bremen, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, D-79104 Freiburg, and School of Science and Engineering, Jacobs University Bremen, P.O. Box 750561, D-28725 Bremen
| | - Rolf Schubert
- Department of Chemistry, University of Bremen, P.O. Box 330440, D-28357 Bremen, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, D-79104 Freiburg, and School of Science and Engineering, Jacobs University Bremen, P.O. Box 750561, D-28725 Bremen
| | - Mathias Winterhalter
- Department of Chemistry, University of Bremen, P.O. Box 330440, D-28357 Bremen, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, D-79104 Freiburg, and School of Science and Engineering, Jacobs University Bremen, P.O. Box 750561, D-28725 Bremen
| | - Detlef Gabel
- Department of Chemistry, University of Bremen, P.O. Box 330440, D-28357 Bremen, Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Freiburg, D-79104 Freiburg, and School of Science and Engineering, Jacobs University Bremen, P.O. Box 750561, D-28725 Bremen
| |
Collapse
|