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Preparation of immunoliposomes for topical skin cancer treatment

Grant number: 13/15134-2
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): January 03, 2014
Effective date (End): January 02, 2015
Field of knowledge:Health Sciences - Pharmacy
Principal Investigator:Renata Fonseca Vianna Lopez
Grantee:
Supervisor abroad: Robert J. Lee
Instituição-sede : Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP). Universidade de São Paulo (USP). Ribeirão Preto, SP, Brazil
Research place: Ohio State University, United States  
Associated to the scholarship:12/23764-3 - Topical application of liposomes containing cetuximab: the effect of physical skin penetration enhancement techniques for cutaneous squamous cell carcinoma, BP.DR

Abstract

Among skin cancers, the squamous cell carcinoma (SCC) holds the second position in frequency and is biologically more aggressive than the basocelular skin cancer. SCC over-expresses the epidermal growth factor receptor (EGFR), which is responsible for communicating extracellular signals to the nucleus and is commonly associated with bad prognosis. The interruption of the signaling cell pathway by the administration of the anti-EGFR cetuximab is a current strategy to inhibit tumor growth. The topical chemotherapy of these tumors is a promising strategy for the reduction of the side effects associated to this kind of therapy. However, to reach the SCC, the drug needs to overcome the primary skin barrier, the stratum corneum (SC). The use of physical methods, such as iontophoresis and low frequency ultrasound (LFS), is then necessary to disturb the SC and allows the cetuximab to reach the tumor cells in high concentrations. Furthermore, the antibody activity is conformation dependent, which means that aggregation changes cetuximab interactions with EGFR. Therefore, topical administration of cetuximab likely requires a delivery system. In this context, the aim of this work is to study different strategies, such as LFS, iontophoresis and drug delivery systems, to topically deliver cetuximab for skin SCC treatment. Liposomes encapsulated or covalently bound to cetuximab will be developed under Prof Robert Lee supervision. Under Prof. Lopez supervision, the influence of LFS and iontophoresis in the tumoral penetration of the drug will be assessed and the efficacy of the drug delivery systems developed will be investigated in vivo using an animal xenograft model for the disease. (AU)

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)
PETRILLI, RAQUEL; ELOY, JOSIMAR O.; LOPEZ, RENATA F. V.; LEE, ROBERT J. Cetuximab Immunoliposomes Enhance Delivery of 5-FU to Skin Squamous Carcinoma Cells. ANTI-CANCER AGENTS IN MEDICINAL CHEMISTRY, v. 17, n. 2, p. 301-308, 2017. Web of Science Citations: 0.
ELOY, JOSIMAR O.; PETRILLI, RAQUEL; LOPEZ, RENATA F. V.; LEE, ROBERT J. Stimuli-Responsive Nanoparticles for siRNA Delivery. CURRENT PHARMACEUTICAL DESIGN, v. 21, n. 29, p. 4131-4144, 2015. Web of Science Citations: 6.
PETRILLI, RAQUEL; ELOY, JOSIMAR O.; MARCHETTI, JULIANA M.; LOPEZ, RENATA F. V.; LEE, ROBERT J. Targeted Lipid Nanoparticles for Antisense Oligonucleotide Delivery. CURRENT PHARMACEUTICAL BIOTECHNOLOGY, v. 15, n. 9, p. 847-855, 2014. Web of Science Citations: 2.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.