Advanced search
Start date

Development of a hydrogel-based delivery system for release of biocompatible glasses ions and drug as support in treatment of bone cancer and subsequent bone regeneration


The bone tissue has different functions in the human body, and some diseases may compromise these functions, such as bone cancer, which can also lead to pain and decrease in life quality. In this sense, the patient's life quality may be increased if the treatment of cancer lead to reduction in bone loss and/or bone regeneration. This project aims to develop an injectable delivery system suitable for both local treatment of bone cancer and bone tissue regeneration through brachytherapy and delivery of drug. This system is based on a drug (zoledronic acid) and rare earth-doped biocompatible gasses both trapped in a poloxamer-based hydrogel matrix. The glass will be obtained through sol-gel synthesis, and will be analyzed by X-ray diffraction, scanning electron microscopy, and differential thermal analysis. The glass' potential as source of radiation for brachytherapy will be evaluated by neutron activation. Regarding the systems, first the poloxamer hydrogel matrix will be obtained, being the biocompatible glass and the drug added later, and therefore reaching binary system (poloxamer + biocompatible glass; poloxamer + drug) and ternary systems (poloxamer + biocompatible glass + drug). All these systems will be physical-chemically evaluated by sol-gel transition test (gelation temperature), differential scanning calorimetry, rheology, drug release profile, and determination of drug-micelle partition coefficient. These systems will also be biologically analyzed by cellular viability test, cellular migration teste, cellular metastasis potential, osteogenic differentiation test, and genic expression. At the end, it is expected to obtain a materials with potential properties for bone cancer treatment (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
Articles published in other media outlets (0 total):
More itemsLess items

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ZAMBANINI, TELMA; BORGES, ROGER; FARIA, PAMELA C.; DELPINO, GIULIA P.; PEREIRA, ISIS S.; MARQUES, MARCIA M.; MARCHI, JULIANA. Dissolution, bioactivity behavior, and cytotoxicity of rare earth-containing bioactive glasses (RE = Gd, Yb). International Journal of Applied Ceramic Technology, v. 16, n. 5, SI, p. 2028-2039, SEP 2019. Web of Science Citations: 0.
LEE, ESTER M. R.; BORGES, ROGER; MARCHI, JULIANA; EDUARDO, CARLOS DE PAULA; MARQUES, MARCIA M. Bioactive glass and high-intensity lasers as a promising treatment for dentin hypersensitivity: An in vitro study. JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS, AUG 2019. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: