首页> 外文会议>Mexican Symposium on Medical Physics >Comparative Study of two Routes of Administration of 5-Aminolevulinic Acid (Oral and Intratumoral Via) and their Effect on the Accumulation of PpIX in Tissues in Murine Model of Breast Cancer
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Comparative Study of two Routes of Administration of 5-Aminolevulinic Acid (Oral and Intratumoral Via) and their Effect on the Accumulation of PpIX in Tissues in Murine Model of Breast Cancer

机译:两种施用5-氨基乙酰丙烯酸(口腔和肿瘤孔)途径的对比研究及其对乳腺癌鼠模型中PPIX中PPIX积累的影响

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Protoporphyrin IX (PpIX) is a photosensitizer synthesized from 5-aminolevulinic acid (ALA) that has been used in photodynamic therapy (PDT) as a promising treatment for many types of cancer. In this work it was quantified the accumulation of PpIX in tumors and in different tissues of female mice (nu/nu) inoculated with breast cancer cells. Two routes of administration of ALA: gastric probe and intratumoral injection were used to find optimum time of accumulation and the via that induce the higher quantity of PpIX to improve the efficiency of PDT. The results show that the accumulation of PpIX using the intratumoral via is two times bigger than the oral via in tumors at 8 h of treatment. The concentrations obtained in the different tissues are not physiologically significant.
机译:原因卟啉IX(PPIX)是从5-氨基乙酰丙烯酸(ALA)合成的光敏剂,其已被用于光动力治疗(PDT)作为许多类型癌症的有希望的治疗。在这项工作中,量化PPIX在肿瘤中的积累以及雌性小鼠(NU / NU)的不同组织接种乳腺癌细胞。 ALA的两种给药途径:胃探针和肿瘤内注射用于寻找最佳的积累时间和诱导较高量的PPIX以提高PDT效率的通量。结果表明,使用肿瘤孔的PPIX积累比治疗8小时的肿瘤中的口腔通孔大的两倍。在不同组织中获得的浓度不是生理上显着的。

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