Ultrastructural effects of two phthalocyanines in CHO-K1 and HeLa cells after laser irradiation
Biocell
;
27(3): 301-309, Dec. 2003.
Article
Dans Anglais
| LILACS
| ID: lil-384240
ABSTRACT
The effects of Photodynamic Therapy using 2nd generation photosensitizers have been widely investigated aiming clinical application treatment of solid neoplasms. In this work, ultrastructure changes caused by the action of two 2nd generation photosensitizers and laser irradiation on CHO-K1 and HeLa (neoplastic) cells were analyzed by transmission electron microscopy. Aluminum phthalocyanine chloride, aluminum phthalocyanine tetrasulfonate chloride and radiation from a semiconductor laser at a fluency of 0.5 J/cm2 (Power=26 mW; lambda=.670 nm) were used. The results showed induction of apoptosis. Such alterations where observed in HeLa but not in CHO-K1 cells after Aluminum phthalocyanine tetrasulfonate chloride (AlPcS4, photodynamic treatment. The Aluminum phthalocyanine chloride (AlPc) photodynamic treatment induced necrosis on the neoplastic cell line, and cytoplasm and nuclear alterations on the normal cell line.
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Indice:
LILAS (Amériques)
Sujet Principal:
Ovaire
/
Photothérapie dynamique
/
Radiosensibilisants
/
Tumeurs du col de l'utérus
/
Lasers
Limites du sujet:
Femelle
/
Humains
langue:
Anglais
Texte intégral:
Biocell
Thème du journal:
Clulas
Année:
2003
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Instituto de Pesquisa e Desenvolvimento/BR
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