Possible Advantages of Aluminum-chloro-tetrasulfonated Phthalocyanine over Hematoporphyrin Derivative As a Photosensitizer in Photodynamic Therapy
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The potency of aluminum-chloro-tetrasulfonated phthalocyanine (AlS4Pc) as a photosensitizer in photodynamic therapy was evaluated in in vitro and in vivo studies. Compared with hematoporphyrin derivative (HpD), the following advantages of AlS4Pc were revealed: (1) AlS4Pc was less toxic than HpD in vitro without light irradiation. (2) AlS4Pc showed more photodynamic-dependent cytotoxicity and anti-tumor effect in the red area of the spectrum (> 660 nm) at which tissue penetration is high. (3) AlS4Pc appeared to be removed more rapidly from normal tissues such as muscle and skin. (4) AlS4Pc showed less photodynamic-dependent cytotoxicity in vitro and milder cutaneous phototoxicity in vivo with UVA irradiation. On the basis of these observations, AlS4Pc shows considerable promise as a photosensitizer for PDT.
Huang L, El-Hussein A, Xuan W, Hamblin M J Photochem Photobiol B. 2017; 178:277-286.
PMID: 29172135 PMC: 5771845. DOI: 10.1016/j.jphotobiol.2017.10.036.
Whole bladder wall photodynamic therapy for refractory carcinoma in situ of the bladder.
Uchibayashi T, Koshida K, Kunimi K, Hisazumi H Br J Cancer. 1995; 71(3):625-8.
PMID: 7880749 PMC: 2033645. DOI: 10.1038/bjc.1995.122.