协同光动力治疗和乙醇消融:光激活持续暴露乙醇注射技术增强肿瘤消融

IF 6.1 2区 医学 Q1 ENGINEERING, BIOMEDICAL
Chen‐Hua Ma, Jeffrey Yang, John A. Quinlan, Kathryn McNaughton, Michele L. Kaluzienski, Tessa Hauser, Matthew F. Starost, Jenna L. Mueller, Huang‐Chiao Huang
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引用次数: 0

摘要

化学消融治疗为肿瘤治疗提供了有效的替代方案,特别是当由于肿瘤的分期、位置或范围而不适合手术切除或热消融治疗时。光动力疗法(PDT)包括提供光激活的肿瘤杀伤光敏剂,以及经皮乙醇注射(PEI),包括直接将纯乙醇注射到肿瘤结节中,这是两种非热基础的化学消融方法,已被证明对不可切除的肿瘤安全且副作用低。我们研究了将这两种处理方法结合使用一种名为BPD - EC - EtOH的新配方。该配方包括三种成分:(1)苯并卟啉衍生物,一种常用的PDT光敏剂;(2)乙基纤维素(EC),一种经FDA批准的聚合物,可在水相形成凝胶,增强药物保留率;(3)用于PEI应用的纯乙醇。在这里,我们证明了BPD的定位,并证实它在模拟组织幻影和猪肝组织中的EC - EtOH凝胶中保留了其光化学性质。我们还描述了EC作为光散射剂的能力,它有效地延长了体外模型和离体猪肝组织中的光传播距离,有可能克服光在色素器官中穿透的局限性。然后,我们利用两种建立良好的肝细胞癌和胰腺导管腺癌皮下动物模型,研究了BPD - EC - EtOH在单周期和多周期联合治疗中的治疗效果,显示出肿瘤杀伤作用。这些发现强调了BPD - EC - EtOH作为一种新的治疗方法的潜力,无论是单周期治疗还是多周期治疗都有效。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Synergizing photodynamic therapy and ethanol ablation: Light‐activatable sustained‐exposure ethanol injection technology for enhanced tumor ablation
Chemical ablative therapies offer effective alternatives for tumor treatment, particularly when surgical resection or heat‐based ablation therapies are unsuitable due to the tumor's stage, location, or extent. Photodynamic therapy (PDT), which involves delivering light‐activated, tumor‐killing photosensitizers, and percutaneous ethanol injection (PEI), which involves the direct injection of pure ethanol into tumor nodules, are two non‐heat‐based chemical ablative methods that have been proven safe with low adverse effects for unresectable tumors. We have investigated combining these two treatments using a new formulation known as BPD‐EC‐EtOH. This formulation includes three components: (1) benzoporphyrin derivative, a commonly used photosensitizer for PDT; (2) ethyl cellulose (EC), an FDA‐approved polymer that forms a gel in the water phase and enhances drug retention; and (3) pure ethanol for PEI application. Here, we demonstrated the localization of BPD and confirmed that it retains its photochemical properties within the EC‐EtOH gel in tissue‐mimicking phantoms and in swine liver tissues. We also characterized EC's ability to act as a light‐scattering agent, which effectively extends light propagation distance in both in vitro models and ex vivo porcine liver tissues, potentially overcoming the limitations of light penetration in pigmented organs. We then investigated the therapeutic effects of BPD‐EC‐EtOH using two well‐established subcutaneous animal models of hepatocellular carcinoma and pancreatic ductal adenocarcinoma, both in single‐ and multi‐cycle combination treatments, showing tumor‐killing effects. These findings highlight the potential of BPD‐EC‐EtOH as a novel therapeutic approach, effective with either single or multi‐cycle treatment sessions.
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来源期刊
Bioengineering & Translational Medicine
Bioengineering & Translational Medicine Pharmacology, Toxicology and Pharmaceutics-Pharmaceutical Science
CiteScore
8.40
自引率
4.10%
发文量
150
审稿时长
12 weeks
期刊介绍: Bioengineering & Translational Medicine, an official, peer-reviewed online open-access journal of the American Institute of Chemical Engineers (AIChE) and the Society for Biological Engineering (SBE), focuses on how chemical and biological engineering approaches drive innovative technologies and solutions that impact clinical practice and commercial healthcare products.
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