PMID- 22024407 OWN - NLM STAT- MEDLINE DCOM- 20120522 LR - 20161125 IS - 1873-3441 (Electronic) IS - 0939-6411 (Linking) VI - 80 IP - 2 DP - 2012 Feb TI - Effect of surfactant on 5-aminolevulinic acid uptake and PpIX generation in human cholangiocarcinoma cell. PG - 453-8 LID - 10.1016/j.ejpb.2011.10.008 [doi] AB - Photodynamic therapy (PDT) is a palliative therapy and has been used to cure cholangiocarcinoma (CC), which has a poor prognosis and limited available curative therapy. PDT was shown to improve the median survival time of advanced-stage patients. Recently, 5-aminolevulinic acid (ALA) has been used as a pro-photosensitizer, which can be transferred to intercellular protoporphyrin IX (PpIX), which is a strong photosensitizer, via the heme pathway. The main limitation of using ALA in PDT is the hydrophilic properties of ALA, which results in low cellular uptake. In this study, non-ionic surfactants, pluronic F68 (PF68) and Tween 80 (TW80), were used to address this limitation. The human CC cell line, HuCC-T1, was cotreated with ALA and different concentrations of surfactants for 4h. The effect of surfactants was evaluated by monitoring the uptake of ALA, the fluorescence intensity of PpIX, and the cell survival rate after suitable light irradiation. Cotreatment with the surfactant resulted in an increased intracellular ALA level, PpIX formation, and phototoxicity. CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Chung, Chung-Wook AU - Chung CW AD - Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea. FAU - Kim, Cy Hyun AU - Kim CH FAU - Choi, Kyung Ha AU - Choi KH FAU - Yoo, Jin-Ju AU - Yoo JJ FAU - Kim, Do Hyung AU - Kim DH FAU - Chung, Kyu-Don AU - Chung KD FAU - Jeong, Young-Il AU - Jeong YI FAU - Kang, Dae Hwan AU - Kang DH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20111018 PL - Netherlands TA - Eur J Pharm Biopharm JT - European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V JID - 9109778 RN - 0 (Excipients) RN - 0 (Photosensitizing Agents) RN - 0 (Polysorbates) RN - 0 (Protoporphyrins) RN - 0 (Surface-Active Agents) RN - 106392-12-5 (Poloxamer) RN - 88755TAZ87 (Aminolevulinic Acid) RN - C2K325S808 (protoporphyrin IX) SB - IM MH - Aminolevulinic Acid/administration & dosage/pharmacokinetics/*pharmacology MH - Bile Duct Neoplasms/drug therapy/pathology MH - Bile Ducts, Intrahepatic/drug effects/pathology MH - Cell Line, Tumor MH - Cell Survival/drug effects MH - Cholangiocarcinoma/*drug therapy/pathology MH - Excipients/chemistry MH - Humans MH - Photochemotherapy/methods MH - Photosensitizing Agents/administration & dosage/pharmacokinetics/*pharmacology MH - Poloxamer/chemistry MH - Polysorbates/chemistry MH - Protoporphyrins/metabolism MH - Surface-Active Agents/*chemistry EDAT- 2011/10/26 06:00 MHDA- 2012/05/23 06:00 CRDT- 2011/10/26 06:00 PHST- 2011/03/09 00:00 [received] PHST- 2011/09/16 00:00 [revised] PHST- 2011/10/07 00:00 [accepted] PHST- 2011/10/26 06:00 [entrez] PHST- 2011/10/26 06:00 [pubmed] PHST- 2012/05/23 06:00 [medline] AID - S0939-6411(11)00303-1 [pii] AID - 10.1016/j.ejpb.2011.10.008 [doi] PST - ppublish SO - Eur J Pharm Biopharm. 2012 Feb;80(2):453-8. doi: 10.1016/j.ejpb.2011.10.008. Epub 2011 Oct 18.