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Obtaining and in vitro biological study of hypericin derivatives for use as photosensitizers in photodynamic therapy

Grant number: 13/25155-7
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2014
Effective date (End): January 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal Investigator:Anderson Orzari Ribeiro
Grantee:Gislaine Patricia de Andrade
Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil


Photodynamic therapy (PDT) is a technique that is based on topical or systemic administration of a photosensitizer that after accumulate in diseased tissue and exposed to light of the appropriate wavelength are capable to generates oxygen reactive species inactivating or lead to cell death. Among the currently studied photosensitizers can highlight hypericin, which also has great potential as a fluorescent probe. In this work we propose the study of biological approach to new formulations containing this compound which are more soluble in physiological media, both in the form of salts of hypericin ( hypericinates ) and the encapsulation of this compound in peptides nanotubes. It is expected to correlate the solubility in physiological media, interaction and selectivity to cancer cells with the structural properties of macrocycles studied, allowing structure activity correlation among these photosensitizing drug candidates .

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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)
DE ANDRADE, GISLAINE PATRICIA; MANIERI, TANIA MARIA; NUNES, EMILENE ARUSIEVICZ; VIANA, GUSTAVO MONTEIRO; CERCHIARO, GISELLE; RIBEIRO, ANDERSON ORZARI. Comparative in vitro study of photodynamic activity of hypericin and hypericinates in MCF-7 cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY, v. 175, p. 89-98, . (13/25155-7, 14/18527-8)

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